Mitsubishi Q00JCPU User Manual page 439

6
FUNCTIONS
Diagnosics
Multiple CPU
Multiple
consistency error
CPU
Other CPU minor
error
error
File diagnostics check
Annunciator check
CHK Instruction check
BOOT OK
POINT
Table6.35 Self-diagnostics list (Continued)
Error message Diagnostics timing
• When the CPU
CPU
module is
LAY.ERROR
powered on/reset
MULTI CPU
• Always
ERROR
• When the CPU
module is
powered on/reset
INCORRECT
• When switched
FILE
from STOP to
RUN
• At PLC writing
• When an
F**** instruction is
executed
• When an
<CHK>ERR***-
instruction is
***
executed
• When the CPU
BOOT OK module is
powered on/reset
* 1 : The operation status can be changed to "Continue" with the parameter setting in GX Developer.
(The default is set to "Stop".)
* 2 : The check item can be set to "Not execute (without a checkmark in the checkbox)" with the
parameter setting in GX Developer. (The default is set to "Execute (with a checkmark in the
checkbox)".) Besides, the check is not executed when SM251 is ON.
* 3 : The check can be set to "Not execute (without a checkmark in the checkbox)" with the parameter
setting in GX Developer. (The default is set to "Execute (with a checkmark in the checkbox)".)
* 4 : In a multiple CPU system configuration, it is detected only by CPU module of CPU No.1 when
serial No. (first five digits) of all CPU modules is "07032" or later.
* 5 : The CPU module whose function version is B or later is required.
* 6 : Operation errors which occur when device range is checked for index-modified devices are
included.
* 7 : Since this diagnostics indicates the CPU module status, the error message is not displayed in the
"Current error" field on the PLC diagnostics screen of GX Developer.
This error is displayed in the error history field only.
* 8 : Only the Built-in Ethernet port QCPU is targeted.
* 9 : CPU modules whose serial number (first five digits) is "10042" or later are targeted.
In the case of the Redundant CPU, the information of the error that occurred in the
other system is stored into the special relay (SM1610 to 1626) and special
register (SD1610 to 1636).
In any of the following cases, the other system error information is not stored.
• The other system is powered OFF/reset or has developed a hardware
failure.
• A watchdog timer error (error code: 5000, 5001) has occurred.
• Tracking cable fault (not installed, disconnected, failed, etc.)
CPU LED status
module
RUN
status
Stop OFF
Continue ON
Stop OFF
Continue ON
Continue ON
Stop OFF
: Self-diagnostics is performed,
6.17 Self-diagnostics Function
CPU module
ERR. 1) 2) 3) 4)
Flash
ON
OFF
USER LED
ON
USER LED
ON
Flash
: Self-diagnostics is not performed
6
- 139
1
5)
2
3
4
5
6
7
8