In our previous two issues, we discussed troubleshooting digital output modules. Troubleshooting analog modules is a bit more complicated, for two reasons: Analog modules aren't on/off, as digital ...

The high-voltage DACs offer user-programmable bipolar output voltages of ±20, ±10, and ±5 V, along with full-scale unipolar output voltages of 40, 10, and 5 V.

Troubleshooting PLC Analog Output Modules, Part 2. Aug. 24, 2010. ... Does the module's output correspond correctly to its input? Determine that by forcing the PLC output to 10%, 25%, 50%, 75%, and 90 ...