Mitsubishi Electric MELSEC iQ-R Series User Manual page 160

Error flag
This flag turns ON when an error other than a hardware error occurs.
After an error occurs and the error code of the error is stored in 'Latest error code' (Un\G0), this flag turns ON.
An error occurs under the following conditions:
• When data is set in a system area of the buffer memory
• When the setting in the area where writing is enabled only in the setting mode ('Setting/operation mode status' (X1): OFF)
is changed in the operation mode ('Setting/operation mode status' (X1): ON)
• When the data that cannot be set is set
• When settings in the buffer memory are changed while the default settings have been registered
'Error flag' (X2)
'Latest error code' (Un\G0)
'Error reset command' (Y2)
■Device No.
The following shows the device number of this input signal.
Signal name
Error flag
Hardware error flag
This flag turns ON when a hardware failure occurs in the temperature control module.
■Device No.
The following shows the device number of this input signal.
Signal name
Hardware error flag
APPX
158
Appendix 2 I/O Signal
ON
OFF
0H
OFF
Executed by the temperature control module
Error code
ON
CH1 to CH4
X2
CH1 to CH4
X3
0H