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McQuay Micro Tech Open Protocol Driver Manual Page 19 of 35
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
Array
Location
Read/
Write/
Both
Field Name
Number
of Bytes
Base
Address
Device
Scaling
Method
5
56 r Condenser Water Temperature -
Leaving
2 0x0434
3
58 r Cooling Tower Control 1 0x0926
1
59 r Cooling Tower Stage 1 0x049A
1
60 r Cooling Tower Valve Position 1 0x049B
1
61 r Discharge Refrigerant Temperature 2 0x043E
3
63 r Evaporator Approach Temperature 2 0x0482
2
65 r Evaporator Pump Status 1 0x0423
1
66 r Evaporator Pump #1 Operating Hours
2 0x0854
1
68 r Evaporator Pump #2Operating Hours
2 0x0857
1
70 r Evaporator Refrigerant Pressure 2 0x0438
2
72 r Evaporator Refrigerant Temperature 2 0x0464
3
74 r Evaporator Water Flow Rate 2 0x0450
1
76 r Evaporator Water Flow Status 1 0x045E
1
77 r Evaporator Water Rate Sensor 1 0x083C
1
78 r Evaporator Water Temperature - Delta 2 0x0486
2
80 r Evaporator Water Temperature - Entering
2 0x0432
3
82 r Evaporator Water Temperature - Leaving
2 0x0430
3
84 r Fault - Current Active 1 0x1C00
1
85 r Last Start Hour 1 0x0861
1
86 r Last Start Minute 1 0x0862
1
87 r Last Start Month 1 0x0863
1
88 r Last Start Date 1 0x0864
1
89 r Last Start Year 1 0x0865
1
90 r Last Stop Hour 1 0x0866
1
91 r Last Stop Minute 1 0x0867
1
92 r Last Stop Month 1 0x0868
1
93 r Last Stop Date 1 0x0869
1
94 r Last Stop Year 1 0x086A
1
95 r Liquid Line Refrigerant Temperature 2 0x043C
3
97 r Oil Pressure - Feed 2 0x0446
2
99 r Oil Pressure - Net 2 0x0468
2
101 r Oil Pressure - Vent 2 0x04AC
2
103 r Oil Temperature - Feed 2 0x0442
3
105 r Oil Temperature - Sump 2 0x0444
3
107 r Outdoor Air Temperature - Network 1 0x0474
2
108 r Refrigerant Detection Sensor 1 0x083E
1
109 r Refrigerant Leak Detection Limit 1 0x044B
1
110 r Unit Status 1 0x0420
1
111 b Capacity Limit Percent 1 0x0475
1
112 b Clear Current Fault 1 0x041E
1
113 b Chiller Operation Mode 1 0x0477
1
114 b Chilled Water Temperature Setpoint 1 0x0476
4