Mitsubishi Electric MELSEC iQ-R02CPU - Checking the Simple CPU Communication Status

1 FUNCTIONS
1.15 Simple CPU Communication Function (RJ71EN71, RnENCPU (Network Part))
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1
Checking the simple CPU communication status
The simple CPU communication status can be checked with the buffer memory or diagnostic functions.
Checking with the buffer memory
The simple CPU communication status can be checked with the storage status of the corresponding setting number in the
following buffer memory areas.
For details on the values to be stored in the buffer memory, refer to the following.
Page 365 Simple CPU communication area
■Communication stop/restart request
When 'Simple CPU communication status for each setting number' (Un\G721936 to Un\G721999) is either of the following,
communications can be stopped by turning off and on 'Request to stop fixed interval communication for each setting number'
(Un\G721900 to Un\G721903). (If the status is other than the following, the stop request is invalid.)
• 3H: Communicating
• 5H: Retry being executed
• 6H: Monitoring at error
When 'Request to stop fixed interval communication for each setting number' (Un\G721900 to Un\G721903) is
turned off and on, the communications will stop at the timing of sending data in the next execution interval.
Therefore, if the communication destination does not respond with the stop request accepted, the
communications will stop after the communication time-out period has passed. When the retry is being
executed, the communications will stop after the communication time-out period has passed without
depending on the retry count.
Item Address Remarks
Request to stop fixed interval communication Un\G721900 to Un\G721903 • Setting No.1: Un\G721900.0

• Setting No.64: Un\G721903.F
Request to restart fixed interval communication Un\G721904 to Un\G721907 • Setting No.1: Un\G721904.0

• Setting No.64: Un\G721907.F
Execution status flag Un\G721908 to Un\G721911 • Setting No.1: Un\G721908.0

• Setting No.64: Un\G721911.F
Ready Un\G721912 to Un\G721915 • Setting No.1: Un\G721912.0

• Setting No.64: Un\G721915.F
Simple CPU communication
status
0H: Unset Un\G721936 to Un\G721999 • Setting No.1: Un\G721936

• Setting No.64: Un\G721999
1H: Preparing
2H: Waiting for the request
3H: Communicating
4H: Communication stop
5H: Retry being executed
6H: Monitoring at error
AH: Communications
impossible
Simple CPU communication error code Un\G722000 to Un\G722063 • Setting No.1: Un\G722000

• Setting No.64: Un\G722063
Abnormal response code Un\G722064 to Un\G722127 • Setting No.1: Un\G722064

• Setting No.64: Un\G722127
Execution interval (current value) Un\G722128 to Un\G722191 • Setting No.1: Un\G722128

• Setting No.64: Un\G722191