Alarm

The following alarm conditions are continuously monitored by the temperature controller:
- Absolute temperatures (high and low)
- Relative temperatures (in two bands around the setpoint)
The following hardware conditions related to the sensor can also be linked to the temperature controller:
- Open thermocouple: broken wire to the temperature sensor.
- Back voltage: a voltage outside the permitted range is present at the temperature sensor.
- Reverse thermocouple: temperature sensor is connected with the wrong polarity.
If a current sensor is connected, then the following signals can be linked to the temperature controller:
- Short circuit
- open circuit
- Leakage current
Requirements
Development environment | Target platform | PLC libraries to include |
---|---|---|
TwinCAT 3.1.4016 | PC or CX | Tc2_TempController |