
| 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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 | 56 | r | Condenser Water Temperature - Leaving | 2 | 0x0434 | 3 | 
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 | 58 | r | Cooling Tower Control | 1 | 0x0926 | 1 | 
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 | 59 | r | Cooling Tower Stage | 1 | 0x049A | 1 | 
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 | 60 | r | Cooling Tower Valve Position | 1 | 0x049B | 1 | 
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 | 61 | r | Discharge Refrigerant Temperature | 2 | 0x043E | 3 | 
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 | 63 | r | Evaporator Approach Temperature | 2 | 0x0482 | 2 | 
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 | 65 | r | Evaporator Pump Status | 1 | 0x0423 | 1 | 
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 | 66 | r | Evaporator Pump #1 Operating Hours | 2 | 0x0854 | 1 | 
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 | 68 | r | Evaporator Pump #2Operating Hours | 2 | 0x0857 | 1 | 
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 | 70 | r | Evaporator Refrigerant Pressure | 2 | 0x0438 | 2 | 
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 | 72 | r | Evaporator Refrigerant Temperature | 2 | 0x0464 | 3 | 
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 | 74 | r | Evaporator Water Flow Rate | 2 | 0x0450 | 1 | 
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 | 76 | r | Evaporator Water Flow Status | 1 | 0x045E | 1 | 
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 | 77 | r | Evaporator Water Rate Sensor | 1 | 0x083C | 1 | 
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 | 78 | r | Evaporator Water Temperature - Delta | 2 | 0x0486 | 2 | 
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 | 80 | r | Evaporator Water Temperature - Entering | 2 | 0x0432 | 3 | 
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 | 82 | r | Evaporator Water Temperature - Leaving | 2 | 0x0430 | 3 | 
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 | 84 | r | Fault - Current Active | 1 | 0x1C00 | 1 | 
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 | 85 | r | Last Start Hour | 1 | 0x0861 | 1 | 
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 | 86 | r | Last Start Minute | 1 | 0x0862 | 1 | 
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 | 87 | r | Last Start Month | 1 | 0x0863 | 1 | 
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 | 88 | r | Last Start Date | 1 | 0x0864 | 1 | 
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 | 89 | r | Last Start Year | 1 | 0x0865 | 1 | 
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 | 90 | r | Last Stop Hour | 1 | 0x0866 | 1 | 
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 | 91 | r | Last Stop Minute | 1 | 0x0867 | 1 | 
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 | 92 | r | Last Stop Month | 1 | 0x0868 | 1 | 
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 | 93 | r | Last Stop Date | 1 | 0x0869 | 1 | 
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 | 94 | r | Last Stop Year | 1 | 0x086A | 1 | 
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 | 95 | r | Liquid Line Refrigerant Temperature | 2 | 0x043C | 3 | 
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 | 97 | r | Oil Pressure - Feed | 2 | 0x0446 | 2 | 
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 | 99 | r | Oil Pressure - Net | 2 | 0x0468 | 2 | 
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 | 101 | r | Oil Pressure - Vent | 2 | 0x04AC | 2 | 
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 | 103 | r | Oil Temperature - Feed | 2 | 0x0442 | 3 | 
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 | 105 | r | Oil Temperature - Sump | 2 | 0x0444 | 3 | 
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 | 107 | r | Outdoor Air Temperature - Network | 1 | 0x0474 | 2 | 
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 | 108 | r | Refrigerant Detection Sensor | 1 | 0x083E | 1 | 
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 | 109 | r | Refrigerant Leak Detection Limit | 1 | 0x044B | 1 | 
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 | 110 | r | Unit Status | 1 | 0x0420 | 1 | 
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 | 111 | b | Capacity Limit Percent | 1 | 0x0475 | 1 | 
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 | 112 | b | Clear Current Fault | 1 | 0x041E | 1 | 
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 | 113 | b | Chiller Operation Mode | 1 | 0x0477 | 1 | 
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 | 114 | b | Chilled Water Temperature Setpoint | 1 | 0x0476 | 4 | 
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FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldServer.com Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: support@fieldServer.com
