What should be setting in Automation builder and connection for 3 wire RTD for AI531 module?
What error message do you have for AI531?
It could be power supervision (check supply parameter = on) or cut wire (check channel parameter) for example.
For better understanding, please provide a screen shot of the settings of AI531 from hardware configuration.
Type AI531 in automation builder help and you can get the connection diagram for 3-wire PT100, also description of parameter settings.
For easier check, make a bridges between:
1.0 and 1.1
2.0 and 2.1
- connect resistor about 100 ohms between 1.0/1.1 and 2.0/2.1 (100 ohms = 0 oC)
- connect power supply to baseplate: +24VDC to UP (1.8) and 0VDC to ZP (1.9)
Connect variable to the input:
In the application:
range of AI0_TEMP is -500 to 4000 for -50oC to 400oC