9 ED 15121
Typical Application: Minimum Integration
Display Important Data Points
Typical workstation displays of MicroTech III Chiller Unit Controller attributes include the following significant data
points (page number of detailed description in parenthesis). Each data point is tagged with a number that identifies it in
the Protocol Point Summary Tables. These particular data points are indicated with boldface type. Refer to Tables 4-8.
Table 3. Significant Data Points
No. Configuration No. Temperatures No. Setpoints No. Alarms
1 Chiller Status (22) 5
Evaporator Entering
Fluid Temperature (25)
9
Cool Setpoint –
Network (24)
11
Warning Alarm
Code(27)
2
Chiller Mode Setpoint
– Network (22)
6
Evaporator Leaving
Fluid Temperature (25)
10
Capacity Limit Setpoint
– Network (20)
12
Problem Alarm
Code(26)
3 Actual Capacity (19) 13 Fault Alarm Code(26)
4
Chiller Enable
Setpoint (21)
14
Clear Alarms -
Network(29)
You can display any number of additional data points based on job requirements or individual preference. See Modbus
Data Points on page 7 for lists of all Modbus properties available to the network. For a more detailed description of all
available data points, see the Detailed Data Point Information section on page 19 of this document.
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