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11
TROUBLESHOOTING
Exception
Error Name
Code
Memory parity
08
H
error
Gateway
0A
H
unusable
Gateway
0B
H
response failure
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Description
In the slave, a parity error was
detected at access to the
extended file register.
The gateway device
(MODBUS/TCP → MODBUS
serial protocol) is not available
for use.
No response is given from the
slave device connected ahead
of the gateway device.
(3) Error code for error completion of processing in slave (QJ71MT91)
If the processing in the slave (QJ71MT91) results in error completion, an
exception code is stored into the buffer memory. In the QJ71MT91, an error code
is also stored into the buffer memory to identify the cause in detail.
The error code can be confirmed in the error log area (address: CFE
of the buffer memory.
REMARK
• Refer to Section 11.3.1 (8) for details of the error log area.
• Refer to Section 11.3.3 for details of the error codes.
Corrective Action
Target device (Master side)
Not issued by the slave function of the QJ71MT91.
MELSEC-Q
QJ71MT91 (Slave side)
to DFF
)
H
H
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