Issue
The Analog inputs are reading too high or too low on a 7780.
Product Line
TAC INET
Environment
7780
Cause
Resistor configuration errors, damaged power supply, or the circuit may have been shorted.
Resolution
Several things could be contributing to this.
- Check the resistor configuration installed for the input and make sure it is correct.
- Check is the analog power supply (+15 VDC) has been damaged.
- Make sure a sensor does not have an open circuit in it (sensor is shorted).