Mitsubishi Electric QJ71MB91 User Manual page 332

Modbus interface module
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11
TROUBLESHOOTING
(8) Error log
11
- 26
11.4 Error Codes
11.4.1 Error code storage area
Up to 32 latest errors are stored in the Error log area as an error history.
Table11.13 Configuration of the Error log area
Error log area name
Number of errors occurred
Error log write pointer
Error log 1
Error logs 2 to 32 (same as Error log 1)
(a) Number of errors occurred
The number of errors entered to the error log is stored.
If 65536 or more errors have occurred, the count stops at FFFF
(b) Error log write pointer
The number of the latest error log is stored.
0
: No error (No error log entry)
1 to 32 : Error log number where the latest error log was entered
Detailed error code
Exception code
Function code
CH
Station No.
Function
Address
0CFE
(3326)
H
0CFF
(3327)
H
0D00
(3328)
H
0D01
(3329)
H
0D02
(3330)
H
0D03
(3331)
H
0D04
H
(3332)
0D07
H
(3335)
0D08
to 0DFF
H
H
(3336 to 3583)
(65535).
H

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