Data Communication Timing Charts; Monitor Codes - Mitsubishi Electric MELSERVO-J2-Super Series Instruction Manual

3. CC-Link COMMUNICATION FUNCTIONS

3.6 Data communication timing charts

3.6.1 Monitor codes

(1) When 1 station is occupied
Monitor 1
(RWwn)
Monitor 2
(RWwn+1)
ON
Monitor execution
demand (RYn8)
OFF
ON
Monitoring
(RXn8)
OFF
Monitor 1 data
(RWrn)
Monitor 2 data
(RWrn+1)
Answer code
(RWrn+2)
Set the monitor codes (refer to Section 3.5.3) to Monitor 1 (RWwn) and Monitor 2 (RWwn+1) and turn
Monitor output execution demand (RYn8) to ON. Turning Monitor execution demand (RYn8) to ON sets
the next data. Data are all hexadecimal numbers. At this time, Monitoring (RXn8) turns to ON at the
same time.
Monitor data 1 (RWrn): Data demanded by Monitor 1 (RWwn)
Monitor data 2 (RWrn+1): Data demanded by Monitor 2 (RWwn+1)
For 32-bit data, set the lower 16 bits of the monitor code to Monitor 1 (RWwn) and the upper 16 bits to
Monitor 2 (RWwn+1) and read them simultaneously.
The monitor data set to the remote register are always updated while Monitor execution demand (RYn8)
is ON.
When Monitoring (RXn8) turns to OFF, the data set to Monitor data RWrn, RWrn+1 are held. If the
monitor code not in the specifications is set to either Monitor 1 (RWwn) or Monitor 2 (RWwn+1), the
corresponding error code ( 1) is set to Answer code.
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Data HOLD