Mitsubishi Electric Q12DCCPU-V User Manual page 535

16
TROUBLESHOOTING
Table 16.8 Common error codes returned by bus interface and MELSEC data link functions (continued)
Return value
(HEX)
Device access error during data link stop
-28150
RX/RY/RWw/RWr was accessed when the own station was not
(0x920A)
transmitting data.
-28151 APS NO. error
(0x9209) Invalid response data were received.
-28155 SRAM wrtie error
(0x9205) Battery-backed-up RAM writing failed.
-28158 WDT error
(0x9202) Watchdog timer (WDT) error occurred.
-28410 Target CPU busy error
(0x9106) Target CPU is busy.
-28412 Target CPU unsupported error
(0x9104) An unsupported request was sent to the target CPU.
-28413
Target CPU down error
(0x9103)
-28414 Target CPU abnormal start error
(0x9102) A request was sent to the CPU which was not operating normally.
-28415 Target CPU critical error
(0x9101) A request was sent to the CPU where a critical error occurred.
-28416
Target CPU not mounted error
(0x9100)
Error description
* 1 In a single CPU system, reset the C Controller module.
In a multiple CPU system, reset CPU No. 1.
16.4.1 Error codes and actions (for errors occurred in function execution)
Corrective action
Restart the data link.
Note: Writing/reading data will be performed
even when this error occurs. However,
the data are not guaranteed.
Check if there is an error in the target CPU,
CC-Link module, or MELSECNET/H module.
If the status is normal, try again.
Check if an interrupt routine (interrupt program)
is writing data into the same battery backed-up
RAM area.
Change the C Controller module if the error
persists.
*1
Reboot the operating system.
Reset the module.
Add a program to wait until the processing is
completed or to retry.
Increase the timeout value in the user program.
Change the target CPU No. in the user
program.
Check the operating status of the target CPU
and trouble shoot the error.
Check the operating status of the target CPU
and trouble shoot the error.
Check the operating status of the target CPU
and troubleshoot the error.
Check if the target CPU is mounted properly.
Change the target CPU No. specified in the
user program.
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16.4 Error Code List
9
10
11
12
13
14
15
16
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