McQuay Micro Tech Open Protocol Driver Manual

 

Page 20 of 35

 

 

 

 

 

 

 

 

 

Array

Read/

Field Name

Number

Base

Device

 

 

Write/

Scaling5

 

 

Location

of Bytes

Address

 

 

 

 

 

 

Both

 

 

 

Method

 

 

115

b

Communications Signal

1

0x047D

1

 

 

116

b

Outdoor Air Temperature - BAS

1

0x0473

5

 

 

117

b

Master/Server Setpoint

1

0x093C

1

 

 

118

b

Lead/Lag Mode Setpoint

1

0x093D

1

 

 

119

b

Enable Lag Setpoint

1

0x093E

1

 

 

120

b

Disable Lag Setpoint

1

0x093F

1

 

 

121

b

Lag Standby Setpoint

1

0x0942

1

 

 

122

b

Lead/Lag Switch Setpoint (Day)

1

0x0948

1

 

 

123

b

Lead/Lag Switch Setpoint (Hour)

1

0x0949

1

 

 

124

r

Lead/Lag Status

1

0x0401

1

 

 

125

r

Lead Unit

1

0x0402

1

 

 

126

r

Lead Unit Status

1

0x0403

1

 

 

127

r

Lag Unit Status

1

0x0404

1

 

 

128

r

Lead Motor Current

1

0x0405

1

 

 

129

r

Lag Motor Current

1

0x0406

1

 

 

130

r

Lead Status

1

0x0407

1

 

 

131

r

Lag Status

1

0x0408

1

 

 

132

b

Chiller Control mode

1

0x900

1

 

 

133

b

Chilled Water Temperature Local Setpoint

1

0x901

4

 

 

134

r

Chilled Water Temperature – Active Setpoint

1

0x905

4

 

Table 3 - Equipment Type: 050RPC Reciprocating Chiller

Array

Read/

 

Number

Base

Device

Write/

Field Name

Scaling6

Location

of Bytes

Address

 

 

 

Both

 

 

 

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.

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

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FieldServer FS-8700-80 instruction manual Equipment Type 050RPC Reciprocating Chiller