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3. CC-LINK COMMUNICATION FUNCTIONS
(2) When 2 stations are occupied
Data HOLD
ON
OFF
Monitor 1
(RWwn)
Monitor 2
(RWwn+1)
Monitor execution
demand (RYn8)
ON
OFF
Monitoring
(RXn8)
Monitor 1 data
Lower 16bit (RWrn)
Monitor 1 data
Upper 16bit (RWrn+1)
Monitor 2 data
Lower 16bit (RWrn+5)
Monitor 2 data
Upper 16bit (RWrn+6)
Respond 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.
32-bit data are all divided into the upper 16 bits and lower 16 bits, and set to the remote register. Data are all
hexadecimal numbers. At this time, Monitoring (RXn8) turns to ON at the same time.
Monitor data 1 lower 16 bit (RWrn): Lower 16 bits of data demanded by Monitor 1 (RWwn)
Monitor data 1 upper 16 bit (RWrn+1): Upper 16 bits of data demanded by Monitor 1 (RWwn)
Monitor data 2 lower 16 bit (RWrn+5): Lower 16 bits of data demanded by Monitor 2 (RWwn+1)
Monitor data 2 upper 16 bit (RWrn+6): Upper 16 bits of data demanded by Monitor 2 (RWwn+1)
A sign is set if data does not exist in RWrn+1
RWrn+6. A " " sign is indicated by "0000", and " " by "FFFF".
The monitor data set to the remote register are always updated while Monitoring (RXn8) is ON.
When Monitoring (RXn8) turns to OFF, the data set to Monitor data RWrn, RWrn+1, RWrn+5, RWrn+6 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 respond code.