Mitsubishi Electric QJ71C24N User Manual page 364

Q corresponding serial communication module
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11 TROUBLESHOOTING
11 - 48
REMARKS
When the "ERR." LED is turned on, an error code is stored in the following buffer
memory.
Error
Switch setting error or Mode
switching error
On-demand execution error
Data transmission error
Data reception error
Modem function error
MC protocol transmission
error
Monitoring device error
Pre-defined protocol
function error
Switch setting error and mode switching error area (address: 203
On-demand execution result area (address: 256
Data transmission result area (address: 257
Data reception result area (address: 258
Modem function error code area (address: 221
MC protocol transmission error code (address: 25A
Programmable controller CPU monitoring function execution result
(address: 2205
/2305
)
H
H
Pre-defined protocol status function error code (address: 4042
MELSEC-Q
Buffer memory
/266
)
H
H
/267
)
H
H
/268
)
H
H
)
H
/26A
H
)
H
)
H
/4052
)
H
H
11 - 48

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