KRC0162

Common Causes

• KRL program contains a calculation or command that attempts to output a voltage or current beyond the hardware specification range
• Analog output calibration values or signal scaling parameters are incorrect, causing mapped values to exceed limits
• Load or force measurement from a sensor is being routed directly to an analog output without proper range conversion or filtering
• User incorrectly configured the analog output signal gain, offset, or limits in WorkVisual RIO configuration
• External device connected to the analog output is drawing excessive current, causing the output amplifier to saturate and clip the signal

Troubleshooting Steps

1. 1Identify which analog output signal is being limited by reviewing the alarm message details and RIO signal status in WorkVisual diagnostics
2. 2Review the KRL source code to locate the command or calculation that generates the out-of-range analog output value
3. 3Verify the analog output hardware specifications and compare the commanded value range against the permissible limits documented in the RIO manual
4. 4Check the signal mapping and scaling parameters in WorkVisual to ensure gain, offset, and limit values are correctly configured for the application
5. 5Measure the actual voltage or current output using a multimeter to confirm the value is clipped at the limit and verify connected device characteristics
6. 6Modify the KRL program to implement range checking or add a signal limiter function to ensure all analog output commands remain within specification before submission to RIO