The temperature measurement range of the thermocouple has been exceeded.
Sensor lower limit exceeded fault (bit 2) or Sensor upper limit exceeded fault (bit 3) will occur in the fourth argument InputStatus of the SsiInputTemperature function.
The measurement temperature range differs depending on the Thermocouple
type.
Therefore, if a sensor exceeded fault always occurs, the following factors
may be considered.
- The connected thermocouple type was not specified correctly using
the SsiSetSensorType
function.
- Thermocouple wiring is incorrect.
- Other problems such as failure of sensor input device.
If necessary, check the system installation status.