Omron C200HW-SRM21-V1 - 08-2007 - Slaves Other than Analog Terminals

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I/O Response Time Characteristics Section 2-5
2-5-1 Slaves Other Than Analog Terminals
Minimum I/O Response
Time
The following timing chart shows the minimum I/O response time.
The minimum I/O response time is the total of the following terms:
T
MIN
= IN + T
S(IN)
+ T
M-in-min
+ T
I/O
+ T
PLC
+ T
M-out-min
+ T
S(OUT)
+ OUT
T
MIN
: Minimum I/O response time
T
PLC
: PLC’s cycle time
IN: Input delay in the Slave (Refer to 2-5-3 Slave I/O Delay Times on
page 51.)
OUT: Output delay in the Slave (Refer to 2-5-3 Slave I/O Delay Times on
page 51.)
T
S (IN)
: Input data transmission time for one node.
High-speed Communications Mode: 20
µs
Long-distance Communications Mode: 160
µs
T
M-in-min
: Minimum input processing time in the Master
CS-series, C200HX/HG/HE-(Z)E, C200HS, or CQM1 Master Unit:
T
M-in-min
= 0 µs
CS-series Master Units:
T
M-in-min
=20 µs (allocated words for 1 unit number),
25
µs (allocated words for 2 unit numbers)
CJ-series Master Units:
T
M-in-min
= 25 µs
T
M-out-min
: Minimum output processing time in the Master
CS-series, C200HX/HG/HE-(Z)E, C200HS, of CQM1 Master Unit:
T
M-out-min
= 0 µs
CS-series Master Units:
T
M-out-min
= 33 µs (allocated words for 1 unit number),
43.5
µs (allocated words for 2 unit numbers)
CJ-series Master Unit:
T
M-out-min
= 45 µs
T
S (OUT)
: Output data transmission time for one node.
High-speed Communications Mode: 15
µs
PLC cycle
Master Unit
processing
Communications
cycle
Input
Output
IN
OUT
Minimum I/O response time (T
MIN
)
TM-in-min TM-out-min
TI/O TPLC
TS(IN)
TS(OUT)
Slave
processing