Specifications

34
BCN-B11127-478*
4.6 Data communication timing charts
4.6.1 Monitor codes
(1) When 1 station is occupied
Data HOLD
ON
OFF
Monitor 1
(RWw0)
Monitor 2
Monitor execution
demand
(RY8)
ON
Monitoring
(RX8)
Monitor 1 data
(RWr0)
Monitor 2 data
(RWr1)
Answer code
(RWr2)
(RWw1)
OFF
Set the monitor codes to Monitor 1 (RW
W0
) and Monitor 2 (RW
W1
) and turn Monitor output execution
demand (RY8) to “1” (ON). Turning RY8 to “1” (ON) sets the next data. Data are all hexadecimal numbers.
At this time, Monitoring (RX8) turns to “1” (ON) at the same time.
Monitor data 1 (RW
R0
): Data demanded by Monitor 1 (RW
W0
)
Monitor data 2 (RW
R1
): Data demanded by Monitor 2 (RW
W1
)
Answer code (RW
R2
): Normal or error answer code
For 32-bit data, set the lower 16 bits of the monitor code to Monitor 1 (RW
W0
) and the upper 16 bits to
Monitor 2 (RW
W1
) and read them simultaneously.
The monitor data set to the remote register are always updated while RX8 is “1” (ON).
When RX8 turns to “0” (OFF), the data set to Monitor data RW
R0
, RW
R1
are held. If the monitor code not
in the specifications is set to either Monitor 1 (RW
W0
) or Monitor 2 (RW
W1
), the corresponding error code
(
1) is set to Answer code.