[RfCrt21] Refrigeration circuit, external control
Program block, name / node subtype: [RfCrt21] Refrigeration circuit, external control
Library hierarchy: Cooling and refrigeration equipment
Family: RfCrt
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Configurator
Program blocks are stored in the library without I/Os. Use the auto-create and auto-connect functions to create I/Os and/or to connect them to the interface blocks, e.g., R_A, CMD_B. Alternatively, take the I/Os from the folder containing the predefined I/Os in the library and/or from the plant and connect them to the interface blocks.
Controls an analog output for the setpoint and a binary enable output (command) that are sent to the control unit of the chiller.
This program block has the following optional functions:
Option: Fault (1xBI)
Reads the fault signal from the chiller control unit and generates an alarm.
Option: Feedback (1xBI)
Reads the feedback signal from the chiller control unit and indicates whether the compressor is running or not.
Name | Description | Type | Alarm / Notification class | Trend / Type | |
|---|---|---|---|---|---|
Cmd | Command | BO: Binary output | No | Yes, 4 | |
SpT | Temperature setpoint | AO: Analog output | No | Yes, 4 | |
Name | Description | Type | Alarm / Notification class | Trend / Type | |
|---|---|---|---|---|---|
Flt | Fault | BI: Binary input | Yes, 4/5 | No | |
Fb | Feedback | BI: Binary input | No | No | |