Reading An Error Code; Error Codes - Mitsubishi MELSEC Q Series Programming Manual

12.1.1

Error codes

Errors are detected by the self diagnostic function of the CPU module or detected during
communication with the CPU module.
The relation between the error detection pattern, error detection location and error code is shown
in Table 12.1.
Error detection pattern
Detection by the self
diagnostics function of CPU CPU module
module
CPU module
Serial communication module, etc.
CC-Link module
(the built-in CC-Link function included)
Ethernet module
Detection at communication
(the built-in Ethernet function included)
with CPU module
CC-Link IE controller network
MELSECNET/H network module
1: CPU module error codes are classified into minor, moderate, major errors as shown below.
*
• Minor error:
• Moderate error: Errors that may cause the CPU module to stop the operation, e.g., WDT error.
• Major error:
Determine the error level, i.e. whether the operation can be continued or stopped, by referring to
"Operating Statuses of CPU" described in Section 12.1.3 to 12.1.9 "Error Code List"
2: When detected an error code without being noted in the reference table, please contact your local
*
Mitsubishi representive.
12.1.2

Reading an error code

When an error occurs, reading an error code, error message or the like can be executed with GX
Developer.
For the details of the operation method, refer to the operating manual for GX Developer.
Table12.1Reference destination
Error detection location
Errors that may allow the CPU module to continue the operation, e.g., battery error.
(Error code: 1300 to 10000)
Errors that may cause the CPU module to stop the operation, e.g., RAM error.
(Error code: 1000 to 1299)
Error code
*1*2
Section 12.1.3 to
1000 to 10000
• User's Manual (Hardware design,
4000 to 4FFF Maintenance and Inspection) for the CPU
H
H
module used
User's manuals for the serial communication
7000 to 7FFF
H
H
module, etc.
User's manuals for the CC-Link system master/
B000 to BFFF
H
H
local module
• User's manuals for the Ethernet interface
module
• QnUCPU User's Manual (Communication via
C000 to CFFF
H
H
Built-in Ethernet Port)
• MELSEC-L CPU Module User's Manual
(Built-In Ethernet Function)
CC-Link IE Controller Network Reference
E000 to EFFF
H H
Manual
• MELSECNET/H mode
Q Corresponding MELSECNET/H Network
System Reference Manual
F000 to FFFF
H
H
• MELSECNET/10 mode
For QnA/Q4AR MELSECNET/10 Network
System Reference Manual
Reference
12.1.9
12-3
1
2
3
12
6
6
7
8