[d4bc481] | 1 | OBJECT: Drive |
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| 2 | DESCRIPTION: |
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| 3 | This object provides an interface to the elevation/azimuth |
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| 4 | drive system(ECA). |
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| 5 | THEORY OF OPERATION: |
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| 6 | This object encapsulates the turret drive. The object provides |
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| 7 | an interface to control the turret drive. A method is provided |
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| 8 | to set the azimuth and elevation rate of the drive. Methods are |
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| 9 | provided to request the drive to run in stabilized or power mode |
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| 10 | and set the drive speed to high or low. A method is also provided |
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| 11 | to allow for drift adjust. |
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| 12 | |
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| 13 | This object also tracks drive system on hours. It gets the hours |
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| 14 | from the EEPROM data, allows the hours to be set, updates the |
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| 15 | hours via the activation and deactivation of the drive, and |
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| 16 | provides access to the hours. |
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| 17 | |
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| 18 | + This is the first bullet. |
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| 19 | + This is the second bullet. |
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| 20 | + This is the third bullet. |
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| 21 | + This is the fourth bullet. |
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| 22 | + This is the fifth bullet. |
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| 23 | |
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| 24 | The object also provides methods to access azimuth and elevation |
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| 25 | displacement, and methods to process changes in the hardware |
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| 26 | discretes drive on, stabilized mode, thermal fault and fault. |
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| 27 | |
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| 28 | The object also provides methods to enable and disable |
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| 29 | both the remote and turret power interlocks which determine if |
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| 30 | the drive can be driven by the remote or turret handstation |
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| 31 | respectively. |
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| 32 | |
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| 33 | ATTRIBUTE DESCRIPTIONS: |
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| 34 | |
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| 35 | |
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| 36 | ATTRIBUTE: Azimuth_displacement |
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| 37 | DESCRIPTION: |
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| 38 | This attribute represents the current azimuth displacement |
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| 39 | of the turret. |
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| 40 | TYPE: floating point |
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| 41 | RANGE: 0-0 |
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| 42 | UNITS: degrees |
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| 43 | REQUIREMENTS: |
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| 44 | AFS 8.2.11 Receive Azimuth Displacement and Elevation Displacement |
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| 45 | AIS 5.2.6 Azimuth Displacement analog |
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| 46 | |
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| 47 | |
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| 48 | ATTRIBUTE: Azimuth_rate |
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| 49 | DESCRIPTION: |
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| 50 | Azimuth rate command for movement of the turret. |
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| 51 | TYPE: floating point |
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| 52 | RANGE: X-Y |
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| 53 | UNITS: degrees / second |
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| 54 | DEFAULT: none |
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| 55 | REQUIREMENTS: |
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| 56 | AFS 8.2.3 Send Azimuth and Elevation Rate to ECA |
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| 57 | AIS 5.3.4 Elevation Rate analog |
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| 58 | AIS 5.3.5 Azimuth Rate analog |
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| 59 | |
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| 60 | |
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| 61 | ATTRIBUTE: Drift_adjust |
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| 62 | DESCRIPTION: |
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| 63 | This attribute represents the current drift adjustment mode |
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| 64 | of the ECA turret drive. |
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| 65 | TYPE: enumerated |
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| 66 | MEMBERS: |
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| 67 | ADJUST_OFF - drift adjust mode is OFF |
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| 68 | ADJUST_ON - drift adjust mode is ON |
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| 69 | REQUIREMENTS: |
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| 70 | AFS 8.2.6 Capable of turret drift adjustment |
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| 71 | AIS 5.3.1 Drift Adjust discrete |
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| 72 | |
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| 73 | |
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| 74 | ATTRIBUTE: Drive_on |
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| 75 | DESCRIPTION: |
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| 76 | Current status of the turret drive. The turret drive may either be |
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| 77 | switched on or off. |
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| 78 | TYPE: boolean |
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| 79 | MEMBERS: |
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| 80 | FALSE - turret drive is off |
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| 81 | TRUE - turret drive is on |
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| 82 | DEFAULT: FALSE |
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| 83 | REQUIREMENTS: |
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| 84 | AFS 8.2.9 Monitor Drive System On |
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| 85 | AIS 5.2.1 Drive System On discrete |
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| 86 | |
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| 87 | |
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| 88 | ATTRIBUTE: Drive_system_hours |
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| 89 | DESCRIPTION: |
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| 90 | Total number of hours drive has been activated. |
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| 91 | TYPE: integer |
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| 92 | RANGE: 0 - +INFINITY |
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| 93 | UNITS: seconds |
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| 94 | REQUIREMENTS: |
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| 95 | AFS 4.11 Respond to CDT elapsed time indicator key |
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| 96 | |
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| 97 | |
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| 98 | ATTRIBUTE: Elevation_displacement |
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| 99 | DESCRIPTION: |
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| 100 | This attribute represents the current elevation displacement |
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| 101 | of the turret. |
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| 102 | TYPE: floating point |
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| 103 | RANGE: 0-0 |
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| 104 | UNITS: degrees |
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| 105 | REQUIREMENTS: |
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| 106 | AFS 8.2.11 Receive Azimuth Displacement and Elevation Displacement |
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| 107 | AIS 5.2.7 Elevation Displacement analog |
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| 108 | |
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| 109 | |
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| 110 | ATTRIBUTE: Elevation_rate |
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| 111 | DESCRIPTION: |
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| 112 | Elevation rate command for movement of the turret. |
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| 113 | TYPE: floating point |
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| 114 | RANGE: X - Y |
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| 115 | UNITS: degrees / second |
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| 116 | DEFAULT: none |
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| 117 | REQUIREMENTS: |
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| 118 | AFS 8.2.3 Send Azimuth and Elevation Rate to ECA |
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| 119 | AIS 5.3.4 Elevation Rate analog |
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| 120 | AIS 5.3.5 Azimuth Rate analog |
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| 121 | |
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| 122 | |
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| 123 | ATTRIBUTE: Fault |
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| 124 | DESCRIPTION: |
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| 125 | This attribute denotes whether a turret malfunction has occurred. |
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| 126 | TYPE: boolean |
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| 127 | MEMBERS: |
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| 128 | TRUE - a turret malfunction has occurred |
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| 129 | FALSE - no turret malfunction has occurred |
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| 130 | DEFAULT: FALSE |
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| 131 | REQUIREMENTS: |
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| 132 | AFS 8.2.7 Check for ECA failure indication |
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| 133 | AIS 5.2.4 Turret Drive Malfunction discrete |
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| 134 | |
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| 135 | |
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| 136 | ATTRIBUTE: Mode |
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| 137 | DESCRIPTION: |
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| 138 | Current requested drive mode. |
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| 139 | TYPE: enumerated |
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| 140 | MEMBERS: |
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| 141 | POWER - operate in POWER mode |
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| 142 | STAB - operate in STABILIZED mode |
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| 143 | DEFAULT: POWER |
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| 144 | REQUIREMENTS: |
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| 145 | bogus requirement |
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| 146 | |
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| 147 | |
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| 148 | ATTRIBUTE: Remote_power_interlock_position |
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| 149 | DESCRIPTION: |
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| 150 | This is the status of the remote's power interlock. |
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| 151 | TYPE: enumerated |
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| 152 | MEMBERS: |
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| 153 | OPEN - relay is open |
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| 154 | CLOSED - relay is closed |
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| 155 | REQUIREMENTS: |
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| 156 | AFS 8.2.12 Control Power Interlock |
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| 157 | |
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| 158 | |
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| 159 | ATTRIBUTE: Speed |
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| 160 | DESCRIPTION: |
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| 161 | Current speed mode of the ECA turret drive. |
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| 162 | TYPE: enumerated |
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| 163 | MEMBERS: |
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| 164 | LOW_SPEED - turret drive does not allow the maximum rate |
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| 165 | HIGH_SPEED - turret drive allows the maximum rate |
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| 166 | DEFAULT: HIGH |
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| 167 | REQUIREMENTS: |
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| 168 | AFS 8.2.5 Control Turret |
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| 169 | AIS 5.3.3 Turret High Speed Mode discrete |
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| 170 | |
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| 171 | |
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| 172 | ATTRIBUTE: Stabilized_mode |
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| 173 | DESCRIPTION: |
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| 174 | Current drive mode indicating whether the ECA electronics are |
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| 175 | operating in Stabilized mode or Power mode. |
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| 176 | TYPE: boolean |
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| 177 | MEMBERS: |
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| 178 | FALSE - not operating in STABILIZED mode |
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| 179 | TRUE - operating in STABILIZED mode |
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| 180 | DEFAULT: FALSE |
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| 181 | REQUIREMENTS: |
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| 182 | AFS 8.2.8 Monitor Turret Stab Mode Indicate |
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| 183 | AIS 5.2.3 Turret Stab Mode Indicate discrete |
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| 184 | |
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| 185 | |
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| 186 | ATTRIBUTE: State |
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| 187 | DESCRIPTION: |
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| 188 | Current state of the turret drive. |
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| 189 | TYPE: enumerated |
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| 190 | MEMBERS: |
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| 191 | ACTIVATED - turret drive is ON and active |
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| 192 | DEACTIVATED - turret drive is ON but deactivated |
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| 193 | DEFAULT: DEACTIVATED |
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| 194 | REQUIREMENTS: |
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| 195 | AFS 8.2.4 Set Plam Grips Active |
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| 196 | AIS 5.3.2 Palm Grips Active discrete |
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| 197 | |
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| 198 | |
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| 199 | ATTRIBUTE: Thermal_fault |
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| 200 | DESCRIPTION: |
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| 201 | This attribute denotes whether a turret thermal fault has occurred. |
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| 202 | TYPE: boolean |
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| 203 | MEMBERS: |
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| 204 | TRUE - a turret thermal fault has occurred |
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| 205 | FALSE - no turret thermal fault has occurred |
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| 206 | DEFAULT: FALSE |
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| 207 | REQUIREMENTS: |
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| 208 | AFS 8.2.7 Check for ECA failure indication |
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| 209 | AIS 5.2.2 Turret ECA Thermal Failure discrete |
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| 210 | |
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| 211 | |
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| 212 | ATTRIBUTE: Turret_power_interlock_position |
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| 213 | DESCRIPTION: |
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| 214 | This is the status of the turret's power interlock. |
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| 215 | TYPE: enumerated |
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| 216 | MEMBERS: |
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| 217 | OPEN - relay is open |
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| 218 | CLOSED - relay is closed |
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| 219 | REQUIREMENTS: |
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| 220 | AFS 8.2.12 Control Power Interlock |
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| 221 | |
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| 222 | |
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| 223 | ASSOCIATION DESCRIPTIONS: none |
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| 224 | |
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| 225 | ABSTRACT TYPE DESCRIPTIONS: |
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| 226 | |
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| 227 | ABSTRACT TYPE: Drift_adjust_t |
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| 228 | DESCRIPTION: |
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| 229 | This abstract type represents the current drift adjustment mode |
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| 230 | of the ECA turret drive. |
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| 231 | VISIBILITY: public |
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| 232 | DERIVATION: enumerated |
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| 233 | MEMBERS: |
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| 234 | ADJUST_OFF = 0 - drift adjust mode is OFF |
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| 235 | ADJUST_ON = 1 - drift adjust mode is ON |
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| 236 | REQUIREMENTS: |
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| 237 | AIS 5.3.1 Drift Adjust discrete |
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| 238 | |
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| 239 | ABSTRACT TYPE: Interlock_status |
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| 240 | DESCRIPTION: |
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| 241 | An interlock state being OPEN or CLOSED. |
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| 242 | VISIBILITY: private |
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| 243 | DERIVATION: enumerated |
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| 244 | MEMBERS: |
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| 245 | OPEN - interlock relay is in the open state |
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| 246 | CLOSED - interlock relay is in the closed state |
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| 247 | REQUIREMENTS: |
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| 248 | AFS 8.2.12 Control Power Interlock |
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| 249 | |
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| 250 | ABSTRACT TYPE: Mode |
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| 251 | DESCRIPTION: |
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| 252 | This type specifies the drive mode of the ECA turret drive. |
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| 253 | VISIBILITY: public |
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| 254 | DERIVATION: enumerated |
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| 255 | MEMBERS: |
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| 256 | POWER - operate in POWER mode |
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| 257 | STAB - operate in STABILIZED mode |
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| 258 | |
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| 259 | ABSTRACT TYPE: Speed |
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| 260 | DESCRIPTION: |
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| 261 | This type specifies the Speed mode of the ECA turret drive. |
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| 262 | VISIBILITY: public |
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| 263 | DERIVATION: enumerated |
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| 264 | MEMBERS: |
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| 265 | LOW_SPEED = 0 - turret drive does not allow the maximum rate |
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| 266 | HIGH_SPEED = 1 - turret drive allows the maximum rate |
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| 267 | REQUIREMENTS: |
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| 268 | AIS 5.3.3 Turret High Speed Mode discrete |
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| 269 | |
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| 270 | ABSTRACT TYPE: State_t |
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| 271 | DESCRIPTION: |
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| 272 | This type specifies the state of the turret drive. |
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| 273 | VISIBILITY: private |
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| 274 | DERIVATION: enumerated |
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| 275 | MEMBERS: |
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| 276 | DEACTIVATED - turret drive is ON but deactivated |
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| 277 | ACTIVATED - turret drive is ON and active |
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| 278 | |
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| 279 | DATA ITEM DESCRIPTIONS: |
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| 280 | |
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| 281 | DATA ITEM: Azimuth_displacement_control |
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| 282 | DESCRIPTION: |
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| 283 | This data item contains the Azimuth_displacement analog control |
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| 284 | information. |
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| 285 | TYPE: handle |
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| 286 | |
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| 287 | |
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| 288 | DATA ITEM: Azimuth_rate_control |
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| 289 | DESCRIPTION: |
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| 290 | This data item contains the Azimuth_rate analog control |
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| 291 | information. |
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| 292 | TYPE: handle |
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| 293 | |
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| 294 | |
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| 295 | DATA ITEM: Drift_adjust_control |
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| 296 | DESCRIPTION: |
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| 297 | This data item contains the Drift_adjust discrete control |
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| 298 | information. |
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| 299 | TYPE: handle |
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| 300 | |
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| 301 | |
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| 302 | DATA ITEM: Drive_activate_control |
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| 303 | DESCRIPTION: |
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| 304 | This data item contains the activate drive relay control information. |
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| 305 | TYPE: handle |
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| 306 | |
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| 307 | |
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| 308 | DATA ITEM: Drive_activated_timestamp |
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| 309 | DESCRIPTION: |
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| 310 | This data item stores the timestamp of the last time the drive was |
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| 311 | activated. It will be used to compute the activated time when a |
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| 312 | deactivate is received. |
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| 313 | TYPE: time_t |
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| 314 | DEFAULT: none |
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| 315 | NOTES: |
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| 316 | see C library for data type information |
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| 317 | |
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| 318 | |
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| 319 | DATA ITEM: Drive_on |
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| 320 | DESCRIPTION: |
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| 321 | The current status of the turret drive representing whether |
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| 322 | the drive is on or off. |
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| 323 | TYPE: boolean |
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| 324 | DEFAULT: FALSE |
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| 325 | |
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| 326 | |
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| 327 | DATA ITEM: Drive_on_control |
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| 328 | DESCRIPTION: |
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| 329 | This data item contains the Drive_on discrete flag control |
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| 330 | information. |
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| 331 | TYPE: handle |
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| 332 | |
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| 333 | |
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| 334 | DATA ITEM: Drive_system_hours |
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| 335 | DESCRIPTION: |
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| 336 | This data item stores the actual time the drive has been active. |
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| 337 | This value will be output by the Get_time method and will be set |
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| 338 | by the Set_time method. |
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| 339 | TYPE: integer |
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| 340 | RANGE: 0 - +INFINITY |
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| 341 | UNITS: seconds |
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| 342 | DEFAULT: 0 |
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| 343 | |
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| 344 | |
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| 345 | DATA ITEM: Elevation_rate_control |
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| 346 | DESCRIPTION: |
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| 347 | This data item contains the Elevation_rate analog control |
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| 348 | information. |
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| 349 | TYPE: handle |
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| 350 | |
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| 351 | |
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| 352 | DATA ITEM: Elevation_displacement_control |
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| 353 | DESCRIPTION: |
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| 354 | This data item contains the Elevation_displacement analog control |
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| 355 | information. |
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| 356 | TYPE: handle |
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| 357 | |
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| 358 | |
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| 359 | DATA ITEM: Fault_control |
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| 360 | DESCRIPTION: |
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| 361 | This data item contains the Fault discrete flag control |
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| 362 | information. |
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| 363 | TYPE: handle |
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| 364 | |
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| 365 | |
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| 366 | DATA ITEM: Remote_power_interlock_control |
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| 367 | DESCRIPTION: |
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| 368 | This data item contains the Remote_power_interlock relay control |
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| 369 | information. |
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| 370 | TYPE: handle |
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| 371 | |
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| 372 | |
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| 373 | DATA ITEM: Stabilized_mode_control |
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| 374 | DESCRIPTION: |
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| 375 | This data item contains the Stabilized_mode discrete flag control |
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| 376 | information. |
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| 377 | TYPE: handle |
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| 378 | |
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| 379 | |
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| 380 | DATA ITEM: State |
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| 381 | DESCRIPTION: |
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| 382 | The current state of the turret drive representing an activated or |
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| 383 | deactivated drive. |
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| 384 | TYPE: State_t |
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| 385 | DEFAULT: DEACTIVATED |
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| 386 | |
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| 387 | |
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| 388 | DATA ITEM: Thermal_fault_control |
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| 389 | DESCRIPTION: |
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| 390 | This data item contains the Thermal_fault discrete flag control |
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| 391 | information. |
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| 392 | TYPE: handle |
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| 393 | |
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| 394 | |
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| 395 | DATA ITEM: Turret_power_interlock_control |
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| 396 | DESCRIPTION: |
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| 397 | This data item contains the Turret_power_interlock relay control |
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| 398 | information. |
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| 399 | TYPE: handle |
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| 400 | |
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| 401 | |
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| 402 | DATA ITEM: Turret_power_interlock_status |
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| 403 | DESCRIPTION: |
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| 404 | The accurate status of the turret power interlock relay. This value |
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| 405 | will be used to control the relay during a transition from the remote |
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| 406 | back to the turret console. |
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| 407 | TYPE: Interlock_status |
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| 408 | DEFAULT: none |
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| 409 | |
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| 410 | |
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| 411 | METHOD DESCRIPTIONS: |
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| 412 | |
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| 413 | METHOD: Activate |
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| 414 | DESCRIPTION: |
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| 415 | This method activates the turret drive system. A timestamp of the |
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| 416 | activation is recorded to keep a running count of hours the drive has |
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| 417 | been active. |
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| 418 | VISIBILITY: public |
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| 419 | INPUTS: none |
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| 420 | OUTPUTS: none |
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| 421 | REQUIREMENTS: |
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| 422 | AFS 8.2.4 Set Palm Grips Active |
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| 423 | AIS 5.3.2 Palm Grips Active discrete |
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| 424 | PDL: |
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| 425 | |
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| 426 | if Drive_on |
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| 427 | if State is DEACTIVATED |
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| 428 | close the Drive_activate_control relay using the Relay object |
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| 429 | timestamp Drive_activated_timestamp for Drive_system_hours |
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| 430 | running total |
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| 431 | set State to ACTIVATED |
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| 432 | else |
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| 433 | already in the ACTIVATED state |
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| 434 | |
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| 435 | |
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| 436 | METHOD: Create |
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| 437 | DESCRIPTION: |
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| 438 | This method initializes the Turret Drive object. All monitors of |
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| 439 | turret drive signals are initialized and/or registered. All turret |
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| 440 | drive characteristics are set to their initial values. |
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| 441 | VISIBILITY: public |
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| 442 | INPUTS: none |
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| 443 | OUTPUTS: none |
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| 444 | PDL: |
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| 445 | |
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| 446 | set State to DEACTIVATED |
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| 447 | |
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| 448 | get Drive_system_hours to initialize the elapsed drive time |
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| 449 | from the Statistics (eeprom database) object - this is |
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| 450 | stored upon shutdown in eeprom |
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| 451 | |
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| 452 | create Fault_control using Discrete_flag object with the |
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| 453 | following attributes |
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| 454 | true_sense - DISCRETE_FLAG_TRUE_IS_1 |
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| 455 | is_buffered - false |
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| 456 | is_monitored - true |
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| 457 | period - 10ms |
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| 458 | change_routine - Change_fault |
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| 459 | change fault using initial value returned from create Fault_control |
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| 460 | |
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| 461 | create Thermal_fault_control using Discrete_flag object with |
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| 462 | the following attributes |
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| 463 | true_sense - DISCRETE_FLAG_TRUE_IS_0 |
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| 464 | is_buffered - false |
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| 465 | is_monitored - true |
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| 466 | period - 10ms |
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| 467 | change_routine - Change_thermal_fault |
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| 468 | change thermal fault using initial value returned from create |
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| 469 | Thermal_fault_control |
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| 470 | |
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| 471 | create Stabilized_mode_control using Discrete_flag object with the |
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| 472 | following attributes |
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| 473 | true_sense - DISCRETE_FLAG_TRUE_IS_1 |
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| 474 | is_buffered - false |
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| 475 | is_monitored - true |
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| 476 | period - 10ms |
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| 477 | change_routine - Change_stabilized_mode |
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| 478 | change stabilized mode using initial value returned from create |
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| 479 | Stabilized_mode_control |
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| 480 | |
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| 481 | create Drive_on_control using Discrete_flag object with the |
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| 482 | following attributes |
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| 483 | true_sense - DISCRETE_FLAG_TRUE_IS_1 |
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| 484 | is_buffered - false |
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| 485 | is_monitored - true |
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| 486 | period - 10ms |
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| 487 | change_routine - Change_drive_on |
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| 488 | change drive on using initial value returned from create |
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| 489 | Drive_on_control |
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| 490 | |
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| 491 | create Azimuth_rate_control using the Linear_dac object |
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| 492 | with the following attributes: |
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| 493 | voltage_low - -10 |
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| 494 | voltage_high - +10 |
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| 495 | logical_low - -60 |
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| 496 | logical_high - +60 |
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| 497 | is_buffered - false |
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| 498 | period - none |
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| 499 | initial_value - 0 |
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| 500 | |
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| 501 | create Elevation_rate_control using the Linear_dac object with the |
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| 502 | following attributes: |
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| 503 | voltage_low - -10 |
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| 504 | voltage_high - +10 |
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| 505 | logical_low - -60 |
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| 506 | logical_high - +60 |
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| 507 | is_buffered - false |
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| 508 | period - none |
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| 509 | initial_value - 0 |
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| 510 | |
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| 511 | create Azimuth_displacement_control using the Linear_adc object with |
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| 512 | the following attributes: |
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| 513 | voltage low - |
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| 514 | voltage high - |
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| 515 | logical low - |
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| 516 | logical high - |
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| 517 | is_buffered - false |
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| 518 | is_monitored - false |
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| 519 | period - none |
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| 520 | change_routine - none |
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| 521 | delta - none |
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| 522 | |
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| 523 | create Elevation_displacement_control using the Linear_adc object |
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| 524 | with the following attributes: |
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| 525 | voltage low - |
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| 526 | voltage high - |
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| 527 | logical low - |
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| 528 | logical high - |
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| 529 | is_buffered - false |
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| 530 | is_monitored - false |
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| 531 | period - none |
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| 532 | change_routine - none |
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| 533 | delta - none |
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| 534 | |
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| 535 | create Drive_activate_control using the Relay object with the |
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| 536 | following attributes: |
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| 537 | open_sense - RELAY_OPEN_IS_0 |
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| 538 | is_buffered - false |
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| 539 | period - none |
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| 540 | initial_state - RELAY_OPEN |
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| 541 | |
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| 542 | create Turret_power_interlock_control using the Relay object with |
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| 543 | the following attributes: |
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| 544 | open_sense - RELAY_OPEN_IS_0 |
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| 545 | is_buffered - false |
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| 546 | period - none |
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| 547 | initial_state - RELAY_OPEN |
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| 548 | set Turret_power_interlock_status to OPEN |
---|
| 549 | |
---|
| 550 | create Remote_power_interlock_control using the Relay |
---|
| 551 | object with the following attributes: |
---|
| 552 | open_sense - RELAY_OPEN_IS_0 |
---|
| 553 | is_buffered - false |
---|
| 554 | period - none |
---|
| 555 | initial_state - RELAY_OPEN |
---|
| 556 | |
---|
| 557 | create Drift_adjust_control using the Discrete_out object with |
---|
| 558 | following attributes: |
---|
| 559 | is_buffered - false |
---|
| 560 | period - 10ms |
---|
| 561 | initial_value - ADJUST_OFF |
---|
| 562 | |
---|
| 563 | |
---|
| 564 | METHOD: Deactivate |
---|
| 565 | DESCRIPTION: |
---|
| 566 | This method deactivates the turret drive system. A timestamp of the |
---|
| 567 | activation is recorded to keep a running count of hours the drive |
---|
| 568 | has been active. |
---|
| 569 | VISIBILITY: public |
---|
| 570 | INPUTS: none |
---|
| 571 | OUTPUTS: none |
---|
| 572 | REQUIREMENTS: |
---|
| 573 | AFS 8.2.4 Set Plam Grips Active |
---|
| 574 | AIS 5.3.2 Palm Grips Active discrete |
---|
| 575 | PDL: |
---|
| 576 | |
---|
| 577 | if Drive_on |
---|
| 578 | if State is DEACTIVATED |
---|
| 579 | timestamp deactivate for Drive_system_hours running total |
---|
| 580 | deactivate drive by opening the Drive_activate_control relay |
---|
| 581 | using the Relay object |
---|
| 582 | compute running time since last activate |
---|
| 583 | add running time to Drive_system_hours |
---|
| 584 | set State to DEACTIVATED |
---|
| 585 | else |
---|
| 586 | already in the DEACTIVATED state |
---|
| 587 | |
---|
| 588 | |
---|
| 589 | METHOD: Disable_remote_power_interlock |
---|
| 590 | DESCRIPTION: |
---|
| 591 | This method disables the turret power interlock safety preventing |
---|
| 592 | the turret from being driven by the remote's handstation. |
---|
| 593 | VISIBILITY: public |
---|
| 594 | INPUTS: none |
---|
| 595 | OUTPUTS: none |
---|
| 596 | REQUIREMENTS: |
---|
| 597 | AFS 8.2.12 Control Power Interlock |
---|
| 598 | PDL: |
---|
| 599 | |
---|
| 600 | open the remote power interlock relay |
---|
| 601 | return the turret relay to its designated state defined by the |
---|
| 602 | Turret_power_interlock_status |
---|
| 603 | |
---|
| 604 | |
---|
| 605 | METHOD: Disable_turret_power_interlock |
---|
| 606 | DESCRIPTION: |
---|
| 607 | This method disables the turret power interlock safety preventing |
---|
| 608 | the turret from being driven by the turret's handstation. |
---|
| 609 | VISIBILITY: public |
---|
| 610 | INPUTS: none |
---|
| 611 | OUTPUTS: none |
---|
| 612 | REQUIREMENTS: |
---|
| 613 | AFS 8.2.12 Control Power Interlock |
---|
| 614 | PDL: |
---|
| 615 | |
---|
| 616 | Deactivate the Drive object |
---|
| 617 | open the turret power interlock relay |
---|
| 618 | set Turret_power_interlock_status to OPEN |
---|
| 619 | |
---|
| 620 | |
---|
| 621 | METHOD: Enable_remote_power_interlock |
---|
| 622 | DESCRIPTION: |
---|
| 623 | This method will enable the remote power interlock to allow |
---|
| 624 | the turret to be driven from the remote station. |
---|
| 625 | VISIBILITY: public |
---|
| 626 | INPUTS: none |
---|
| 627 | OUTPUTS: none |
---|
| 628 | REQUIREMENTS: |
---|
| 629 | AFS 8.2.12 Control Power Interlock |
---|
| 630 | NOTES: |
---|
| 631 | At this time the turret's power interlock is opened to avoid |
---|
| 632 | having both relays closed at a time. |
---|
| 633 | PDL: |
---|
| 634 | |
---|
| 635 | if Drive_on |
---|
| 636 | open the turret power interlock relay using the Relay object |
---|
| 637 | close the remote power interlock relay using the Relay object |
---|
| 638 | |
---|
| 639 | |
---|
| 640 | METHOD: Enable_turret_power_interlock |
---|
| 641 | DESCRIPTION: |
---|
| 642 | This method will enable the turret power interlock to allow |
---|
| 643 | the turret to be driven from the turret station. |
---|
| 644 | VISIBILITY: public |
---|
| 645 | INPUTS: none |
---|
| 646 | OUTPUTS: none |
---|
| 647 | REQUIREMENTS: |
---|
| 648 | AFS 8.2.12 Control Power Interlock |
---|
| 649 | NOTES: |
---|
| 650 | At this time the closed state is saved to allow the correct state |
---|
| 651 | to be returned to in the event a remote overrides the turret and the |
---|
| 652 | remote gives up its control, we must return to the previous state of |
---|
| 653 | the turret power interlock. |
---|
| 654 | PDL: |
---|
| 655 | |
---|
| 656 | if Drive_on |
---|
| 657 | close the turret power interlock relay using the Relay object |
---|
| 658 | |
---|
| 659 | set the Turret_power_interlock_status to CLOSED to return to |
---|
| 660 | when remote gives up control |
---|
| 661 | |
---|
| 662 | |
---|
| 663 | METHOD: Get_AZ_EL_displacement |
---|
| 664 | DESCRIPTION: |
---|
| 665 | This method returns the current azimuth displacement and elevation |
---|
| 666 | displacement from the ECA. |
---|
| 667 | VISIBILITY: public |
---|
| 668 | INPUTS: none |
---|
| 669 | OUTPUTS: |
---|
| 670 | current azimuth displacement value |
---|
| 671 | current elevation displacement value |
---|
| 672 | REQUIREMENTS: |
---|
| 673 | AFS 8.2.11 Receive Azimuth Displacement and Elevation Displacement |
---|
| 674 | AIS 5.2.6 Azimuth Displacement analog |
---|
| 675 | AIS 5.2.7 Elevation Displacement analog |
---|
| 676 | NOTES: |
---|
| 677 | Currently supported as an on-demand type of signal. May change to a |
---|
| 678 | monitored analog signal. |
---|
| 679 | PDL: |
---|
| 680 | |
---|
| 681 | if Drive_on |
---|
| 682 | get and return current azimuth displacement and current elevation |
---|
| 683 | displacement from ECA using the Linear_ADC object |
---|
| 684 | |
---|
| 685 | |
---|
| 686 | METHOD: Get_hours |
---|
| 687 | DESCRIPTION: |
---|
| 688 | This method returns the current value contained in the elapsed |
---|
| 689 | turret drive active time. |
---|
| 690 | VISIBILITY: public |
---|
| 691 | INPUTS: none |
---|
| 692 | OUTPUTS: |
---|
| 693 | elapsed turret drive time - the current elasped turret drive time |
---|
| 694 | REQUIREMENTS: |
---|
| 695 | bogus requirements |
---|
| 696 | REFERENCES: |
---|
| 697 | AFS 4.11 Respond to CDT elapsed time indicator key |
---|
| 698 | NOTES: |
---|
| 699 | bogus notes |
---|
| 700 | PDL: |
---|
| 701 | |
---|
| 702 | return the current value for Drive_system_hours |
---|
| 703 | |
---|
| 704 | |
---|
| 705 | METHOD: Set_drift_adjust |
---|
| 706 | DESCRIPTION: |
---|
| 707 | This method provides the ability to set the drift adjust to the |
---|
| 708 | value represented by the handstation. Drift adjust is either ON |
---|
| 709 | or OFF. |
---|
| 710 | VISIBILITY: public |
---|
| 711 | INPUTS: |
---|
| 712 | value - new drift adjust value |
---|
| 713 | ADJUST_OFF - drift adjust mode is OFF |
---|
| 714 | ADJUST_ON - drift adjust mode is ON |
---|
| 715 | OUTPUTS: none |
---|
| 716 | REQUIREMENTS: |
---|
| 717 | AFS 8.2.6 Capable of turret drift adjustment |
---|
| 718 | AIS 5.3.1 Drift Adjust discrete |
---|
| 719 | PDL: |
---|
| 720 | |
---|
| 721 | if Drive_on |
---|
| 722 | set drift adjust discrete to value using Discrete_out object |
---|
| 723 | |
---|
| 724 | METHOD: Set_hours |
---|
| 725 | DESCRIPTION: |
---|
| 726 | This method will set the turret drive activated elapsed time value |
---|
| 727 | to the specified value. |
---|
| 728 | VISIBILITY: public |
---|
| 729 | INPUTS: |
---|
| 730 | new_elapsed_time_value - specified turret drive elapsed time value |
---|
| 731 | OUTPUTS: none |
---|
| 732 | REQUIREMENTS: |
---|
| 733 | AFS 4.11 Respond to CDT elapsed time indicator key |
---|
| 734 | PDL: |
---|
| 735 | |
---|
| 736 | set the value of Drive_system_hours to the value specified by |
---|
| 737 | new_elapsed_time_value |
---|
| 738 | |
---|
| 739 | |
---|
| 740 | METHOD: Set_mode |
---|
| 741 | DESCRIPTION: |
---|
| 742 | This method sets the requested mode of the turret drive. |
---|
| 743 | VISIBILITY: public |
---|
| 744 | INPUTS: |
---|
| 745 | mode - new requested mode |
---|
| 746 | POWER - operating in POWER mode |
---|
| 747 | STAB - operating in STABILIZED mode |
---|
| 748 | OUTPUTS: none |
---|
| 749 | REQUIREMENTS: |
---|
| 750 | bogus requirements |
---|
| 751 | PDL: |
---|
| 752 | if mode is POWER |
---|
| 753 | set drive mode switchlight to PWR_LAMP using the Console object |
---|
| 754 | else if mode is STAB |
---|
| 755 | set drive mode switchlight to STB_LAMP using the Console object |
---|
| 756 | |
---|
| 757 | |
---|
| 758 | METHOD: Set_rate |
---|
| 759 | DESCRIPTION: |
---|
| 760 | This method provides the ability to send azimuth and elevation rates |
---|
| 761 | to the drive. Two parameters are used as input to designate the |
---|
| 762 | corresponding rates. These parameters must be in degrees per second. |
---|
| 763 | VISIBILITY: public |
---|
| 764 | INPUTS: |
---|
| 765 | azimuth rate - new azimuth rate in degress per second |
---|
| 766 | elevation rate - new elevation rate in degress per second |
---|
| 767 | OUTPUTS: none |
---|
| 768 | REQUIREMENTS: |
---|
| 769 | AFS 8.2.3 Send Azimuth and Elevation Rate to ECA |
---|
| 770 | AIS 5.3.4 Elevation Rate analog |
---|
| 771 | AIS 5.3.5 Azimuth Rate analog |
---|
| 772 | NOTES: |
---|
| 773 | May need to couple these analogs with an interface driver to close |
---|
| 774 | the window between writes and conversions. |
---|
| 775 | PDL: |
---|
| 776 | |
---|
| 777 | if Drive_on |
---|
| 778 | send the new azimuth rate to the Azimuth analog |
---|
| 779 | send the new elevation rate to Elevation analog |
---|
| 780 | |
---|
| 781 | |
---|
| 782 | METHOD: Set_speed |
---|
| 783 | DESCRIPTION: |
---|
| 784 | This method sets the turret drive speed mode to the specified value |
---|
| 785 | either high or low based on user input. |
---|
| 786 | VISIBILITY: public |
---|
| 787 | INPUTS: |
---|
| 788 | new_speed_value - new value to set the turret speed to |
---|
| 789 | LOW_SPEED - turret drive does not allow the maximum rate |
---|
| 790 | HIGH_SPEED - turret drive allows the maximum rate |
---|
| 791 | OUTPUTS: none |
---|
| 792 | REQUIREMENTS: |
---|
| 793 | AFS 8.2.5 Control Turret |
---|
| 794 | AIS 5.3.3 Turret High Speed Mode discrete |
---|
| 795 | PDL: |
---|
| 796 | |
---|
| 797 | if Drive_on |
---|
| 798 | set turret drive high speed mode discrete to the new_speed_value |
---|
| 799 | using Discrete_out object |
---|
| 800 | |
---|
| 801 | |
---|
| 802 | METHOD: Change_drive_on |
---|
| 803 | DESCRIPTION: |
---|
| 804 | This method will be used to report a transition of the drive system |
---|
| 805 | on discrete. |
---|
| 806 | VISIBILITY: private |
---|
| 807 | INPUTS: |
---|
| 808 | value - new drive system on value |
---|
| 809 | FALSE - indicates drive not on |
---|
| 810 | TRUE - indicates drive on |
---|
| 811 | OUTPUTS: none |
---|
| 812 | REQUIREMENTS: |
---|
| 813 | AFS 8.2.9 Monitor Drive System On |
---|
| 814 | AIS 5.2.1 Drive System On discrete |
---|
| 815 | REFERENCES: |
---|
| 816 | bogus references |
---|
| 817 | NOTES: |
---|
| 818 | bogus notes |
---|
| 819 | PDL: |
---|
| 820 | |
---|
| 821 | set Drive_on to value |
---|
| 822 | if Drive_on is FALSE |
---|
| 823 | deactivate the turret drive using the Drive object |
---|
| 824 | |
---|
| 825 | |
---|
| 826 | METHOD: Change_fault |
---|
| 827 | DESCRIPTION: |
---|
| 828 | This method will be used to indicate that a turret malfunction |
---|
| 829 | has been recognized by the turret drive. |
---|
| 830 | VISIBILITY: private |
---|
| 831 | INPUTS: |
---|
| 832 | value - new value resulting from a fault discrete change |
---|
| 833 | FALSE - indicates no fault |
---|
| 834 | TRUE - indicates fault |
---|
| 835 | OUTPUTS: none |
---|
| 836 | REQUIREMENTS: |
---|
| 837 | AFS 8.2.7 Check for ECA failure indication |
---|
| 838 | AIS 5.2.4 Turret Drive Malfunction discrete |
---|
| 839 | PDL: |
---|
| 840 | |
---|
| 841 | if value |
---|
| 842 | send turret fault message using the Display object |
---|
| 843 | else |
---|
| 844 | return |
---|
| 845 | |
---|
| 846 | |
---|
| 847 | METHOD: Change_stabilized_mode |
---|
| 848 | DESCRIPTION: |
---|
| 849 | This method will determine a transition from STAB mode to POWER mode. |
---|
| 850 | It will set the stab mode lamp on the console. |
---|
| 851 | VISIBILITY: private |
---|
| 852 | INPUTS: |
---|
| 853 | value - new value resulting from a stab mode discrete change |
---|
| 854 | FALSE - indicates not stabilized mode |
---|
| 855 | TRUE - indicates stabilized mode |
---|
| 856 | OUTPUTS: none |
---|
| 857 | REQUIREMENTS: |
---|
| 858 | AFS 8.2.8 Monitor Turret Stab Mode Indicate |
---|
| 859 | AIS 5.2.3 Turret Stab Mode Indicate discrete |
---|
| 860 | PDL: |
---|
| 861 | |
---|
| 862 | if value |
---|
| 863 | set STAB mode light to LAMP_ON using the Console object |
---|
| 864 | else value indicates not stabilized mode |
---|
| 865 | set STAB mode light to LAMP_OFF using the Console object |
---|
| 866 | |
---|
| 867 | |
---|
| 868 | METHOD: Change_thermal_fault |
---|
| 869 | DESCRIPTION: |
---|
| 870 | This method will be used to indicate that a thermal fault has been |
---|
| 871 | recognized by the turret drive. |
---|
| 872 | VISIBILITY: private |
---|
| 873 | INPUTS: |
---|
| 874 | value - new value resulting from a thermal fault discrete change |
---|
| 875 | FALSE - indicates no thermal fault |
---|
| 876 | TRUE - indicates thermal fault |
---|
| 877 | OUTPUTS: none |
---|
| 878 | REQUIREMENTS: |
---|
| 879 | AFS 8.2.7 Check for ECA failure indication |
---|
| 880 | AIS 5.2.2 Turret ECA Thermal Failure discrete |
---|
| 881 | PDL: |
---|
| 882 | |
---|
| 883 | if value |
---|
| 884 | send thermal fault message using the Display object |
---|
| 885 | else |
---|
| 886 | return |
---|
| 887 | |
---|
| 888 | TASK DESCRIPTIONS: none |
---|
| 889 | |
---|
| 890 | ENDOBJECT: Drive |
---|