Slaves Other Than Analog Terminals - Omron C200HW-SRM21-V1 - 08-2007 Operation Manual

I/O Response Time Characteristics
2-5-1

Slaves Other Than Analog Terminals

Minimum I/O Response
Time
PLC cycle
Master Unit
processing
Communications
cycle
Slave
processing
42
The following timing chart shows the minimum I/O response time.
T
I/O
T
M-in-min
T
S(IN)
Input
IN
Output
Minimum I/O response time (T
The minimum I/O response time is the total of the following terms:
T = IN + T
MIN
T : Minimum I/O response time
MIN
T : PLC's cycle time
PLC
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 : Input data transmission time for one node.
S (IN)
High-speed Communications Mode: 20
Long-distance Communications Mode: 160
T : Minimum input processing time in the Master
M-in-min
CS-series, C200HX/HG/HE-(Z)E, C200HS, or CQM1 Master Unit:
T
M-in-min
CS-series Master Units:
T
M-in-min
CJ-series Master Units:
T
M-in-min
T : Minimum output processing time in the Master
M-out-min
CS-series, C200HX/HG/HE-(Z)E, C200HS, of CQM1 Master Unit:
T
M-out-min
CS-series Master Units:
T
M-out-min
CJ-series Master Unit:
T
M-out-min
T : Output data transmission time for one node.
S (OUT)
High-speed Communications Mode: 15
T
PLC
T
M-out-min
T
S(OUT)
OUT
)
MIN
+ T + T + T
S(IN) M-in-min I/O
= 0 µ s
= 20 µ s (allocated words for 1 unit number),
25 µ s (allocated words for 2 unit numbers)
= 25 µ s
= 0 µ s
= 33 µ s (allocated words for 1 unit number),
43.5 µ s (allocated words for 2 unit numbers)
= 45 µ s
Section 2-5
+ T + T
PLC M-out-min S(OUT)
µ
s
µ
s
µ
s
+ OUT