Mitsubishi Electric NZ2GF12A4-16D User Manual page 128

Error code Classification
(hexadecimal)
D529H Major error
D52BH Major error
*1 Information of the module that has detected an error is stored in Error code details 1 of Error history data  (address: 0A00H to 0AEFH).
For details, refer to the following.
Page 160 Error history data of when a power supply voltage error occurs
*2 The start address of the remote buffer memory areas specified with the REMFR/REMTO instruction is stored in Error code details 1 of
Error history data  (address: 0A00H to 0AEFH).
*3 The remote buffer memory address of the parameter that has detected an error is stored in Error code details 1 of Error history data 
(address: 0A00H to 0AEFH).
The set value upon an error is stored in Error code details 2. The setting values of the lower 16 bits and higher 16 bits are respectively
stored in Error code details 2 and Error code details 3 of Input OFF delay setting and Fast logic setting that have a setting value of 32
bits.
When multiple errors occur, only the latest error code is stored in Error code (RWr1).
The errors that have occurred in the past can be checked in the error history of the engineering tool.
For error history, refer to the following.
Page 121 Checking by executing a command of the slave station
Page 159 Error history data
11 TROUBLESHOOTING
126
11.2 Error Code List
Error name Description and
cause
Communication error 1 A hardware error has
occurred in the
communication LSI.
Communication error 2 A hardware error has
occurred in the
communication LSI.
Action
• A malfunction may have occurred due to noise or others.
Check the cable distance or grounding condition of each
device. Then take measures against noise.
• If the same error occurs again, the hardware of the module
may be in failure. Please consult your local Mitsubishi
representative.