McQuay Micro Tech Open Protocol Driver Manual |
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| Array | Read/ | Field Name | Number | Base | Device |
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| Write/ | Scaling5 |
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| Location | of Bytes | Address |
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| Both |
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| Method |
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| 115 | b | Communications Signal | 1 | 0x047D | 1 |
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| 116 | b | Outdoor Air Temperature - BAS | 1 | 0x0473 | 5 |
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| 117 | b | Master/Server Setpoint | 1 | 0x093C | 1 |
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| 118 | b | Lead/Lag Mode Setpoint | 1 | 0x093D | 1 |
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| 119 | b | Enable Lag Setpoint | 1 | 0x093E | 1 |
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| 120 | b | Disable Lag Setpoint | 1 | 0x093F | 1 |
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| 121 | b | Lag Standby Setpoint | 1 | 0x0942 | 1 |
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| 122 | b | Lead/Lag Switch Setpoint (Day) | 1 | 0x0948 | 1 |
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| 123 | b | Lead/Lag Switch Setpoint (Hour) | 1 | 0x0949 | 1 |
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| 124 | r | Lead/Lag Status | 1 | 0x0401 | 1 |
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| 125 | r | Lead Unit | 1 | 0x0402 | 1 |
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| 126 | r | Lead Unit Status | 1 | 0x0403 | 1 |
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| 127 | r | Lag Unit Status | 1 | 0x0404 | 1 |
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| 128 | r | Lead Motor Current | 1 | 0x0405 | 1 |
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| 129 | r | Lag Motor Current | 1 | 0x0406 | 1 |
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| 130 | r | Lead Status | 1 | 0x0407 | 1 |
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| 131 | r | Lag Status | 1 | 0x0408 | 1 |
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| 132 | b | Chiller Control mode | 1 | 0x900 | 1 |
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| 133 | b | Chilled Water Temperature Local Setpoint | 1 | 0x901 | 4 |
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| 134 | r | Chilled Water Temperature – Active Setpoint | 1 | 0x905 | 4 |
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Table 3 - Equipment Type: 050RPC Reciprocating Chiller
Array | Read/ |
| Number | Base | Device | |
Write/ | Field Name | Scaling6 | ||||
Location | of Bytes | Address | ||||
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| Both |
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| Method | |
3 | r | Circuit #1 Condenser Approach Temperature | 2 | 0x0497 | 2 | |
5 | r | Circuit #1 Condenser Pressure | 2 | 0x0467 | 2 | |
7 | r | Circuit #1 Alarm Conditions: Condenser Pressure | 2 | 0x0822 | 2 | |
9 | r | Circuit #1 Alarm Conditions: Evaporator Pressure | 2 | 0x0820 | 2 | |
11 | r | Circuit #1 Alarm Conditions: Liquid Line Temp | 2 | 0x0826 | 6 | |
13 | r | Circuit #1 Alarm Conditions: Suction Temperature | 2 | 0x0824 | 6 | |
14 | r | Circuit #1 Current Alarm | 1 | 0x0831 | 1 | |
16 | r | Circuit #1 Evaporator Pressure | 2 | 0x0463 | 2 | |
18 | r | Circuit #1 Liquid Line Temperature | 2 | 0x0479 | 6 | |
19 | r | Circuit #1 Previous Alarm | 1 | 0x0833 | 1 | |
20 | r | Circuit #1 Status | 1 | 0x0428 | 1 | |
22 | r | Circuit #1 Subcooling Temperature | 2 | 0x049B | 2 | |
24 | r | Circuit #1 Suction Temperature | 2 | 0x0475 | 6 | |
26 | r | Circuit #1 Superheat Temperature | 2 | 0x0493 | 2 | |
28 | r | Circuit #2 Condenser Approach Temperature | 2 | 0x0499 | 2 |
6See Appendix A.1.
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