External compensation with temperature input

The temperature for the cold junction can be determinated externally.

A measured or known temperature value (e.g. ambient temperature in the cabinet) is transferred to the module via the output data word to all required channels. The possible temperature range is from -25 °C to +60 °C and is monitored by the AI531.

The setting “External with temperature definition” for the parameter “Compensation channel” should be selected.