CKD ABSODEX AX Series Instruction Manual page 23

3.3. Data Communication Timing Chart
3.3.1. Monitor code
Monitor
(RWwn)
Monitor 2
(RWwn+1)
Monitor output execution request
(RY(n+2)0)
Monitoring
(RX(n+2)0)
Monitor 1 data, lower 16 bits
(RWrn)
Monitor 1 data, upper 16
(RWrn+1)
Monitor 2 data, lower 16 bits
(RWrn+5)
Monitor 2 data, upper 16 bits
(RWrn+6)
Response code
(RWrn+2)
Enter monitor 1 (RWwn) and monitor 2 (RWwn+1) as monitor codes and turn the monitor output
execution request (RY (n+2) 0) ON.
Obtained 32-bit data pieces are divided into the upper 16 bits and lower 16 bits when they are
stored in remote registers.
All data is in hexadecimals. At that time, the monitoring signal (RX (n+2) 0) status is turned to ON
simultaneously.
Monitor data 1, lower 16 bits (RWrn)
Monitor data 1, upper 16 bits (RWrn + 1)
Monitor data 2, lower 16 bits (RWrn + 5)
Monitor data 2, upper 16 bits (RWrn + 6)
If there is no data at RWrn+1 and RWrn+6, the sign is acquired.
The sign is "0000" in case of "+" while it is "FFFF" in case of "-."
The monitor data allocated to the remote register is always updated while the monitoring signal
(RS (n+2) 0) status is ON. If the monitoring signal (RX (n+2) 0) status is changed to OFF, each
monitor data set allocated to RWrn, RWrn+1, RWrn+5, and RWrn+6 is retained.
If a monitor code not included in specifications is either monitor 1 (RWwn) or monitor 2 (RWwn+1),
an error code (□□□1) is set in the response code.
OFF ON
OFF ON
bits
Fig. 3.1. Timing chart for monitor code execution
3. CC-Link Communication Function
: Lower 16 bits of data requested on monitor 1 (RWwn)
: Upper 16 bits of data requested on monitor 1 (RWwn)
: Lower 16 bits of data requested on monitor 2 (RWwn + 1)
: Upper 16 bits of data requested on monitor 2 (RWwn + 1)
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OFF ON
OFF ON
Data HOLD
[SMF-2008]