End Code; Error Information - Mitsubishi Electric MELSEC IQ-R series Reference Manual

End code

The command processing result is stored.
At normal completion, '0' is stored.
At abnormal completion, an error code of the access target is stored.
Error code indicates the content of occurred error.
If more than one error occurs at the same time, the error code detected first is returned.
For the content of error code and its corrective action, refer to the user's manual of the module used.
 QCPU User's Manual (Hardware Design, Maintenance and Inspection)
 MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection)
 Q Corresponding Ethernet Interface Module User's Manual (Basic)
 MELSEC-L Ethernet Interface Module User's Manual (Basic)
 MELSEC iQ-R Serial Communication Module User's Manual (Application)
Setting method
■Data communication in ASCII code
Convert the numerical value to 4-digit ASCII code (hexadecimal), and send it from the upper digits.
■Data communication in binary code
Send 2-byte numerical value from the lower byte (L: bits 0 to 7).
Ex.
Normal completion
ASCII code
0 0 0 0
30 30 30 30
H H H H
Error code C051H
ASCII code
C 0 5 1
43 30 35 31
H H H H

Error information

Store the information of a station on which an error occurred and information of a command.
Access route
• Access route: The information of a station which sent an error response is stored. It may differ from the contents of a
request message.
• Command, subcommand: The command and the subcommand when an error occurred are stored.
5 MESSAGES OF ETHERNET INTERFACE MODULE
44
5.3 Details of Setting Data
Command Subcommand
Binary code
00 00
H H
Binary code
51 C0
H H