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6.1 Error Code Type
Errors are detected by the self diagnostics function of CPU module or during
communication with CPU module.
The following table classifies the errors according to the detection pattern,
detection location and error code.
Error detection
pattern
Detection by the
self diagnostics
function of CPU
module
Detection at
communication with
CPU 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 6.3 "Error Code
List".
6.2 Reading Error Code
When an error occurs, the corresponding error code and error message can be
read out using a peripheral device.
For details on peripheral device operation, refer to GX Developer Operating
Manual or SW IVD-GPPQ/SW NX-GPPQ Operating Manual (Online).
Error detection
location
CPU module
CPU module
Serial communication
module, etc.
CC-Link module
Ethernet module
MELSECNET/H
network module
Errors that may allow the CPU module to continue the operation, e.g., battery
error.
(Error code: 1300 to 10000)
(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
1000 to 10000*1 Section 6.3
Q2A(S1)/Q3A/Q4ACPU User's
4000
to 4FFF
H
H
Manual
Serial Communication User's
7000
to 7FFF
H
H
Manual, etc.
CC-Link System Master/Local
B000
to BFFF
H
H
Module User's Manual
Ethernet Interface Module User's
C000
to CFFF
H
H
Manual
For QnA/Q4AR MELSECNET/10
F000
to FFFF
H
H
Network System Reference Manual
64
Reference
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