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Remote I/O Communications Characteristics
CS, CJ, C200HX/HG/HE (-Z), and C200HS PLCs
Minimum I/O Response
Time
114
The minimum I/O response time occurs when the DeviceNet Slave I/O
refreshing is executed just after the input signal is received by the master and
I/O is refreshed for the slave first in the next I/O refresh cycle.
PLC
Master Unit
Input
Output
T
IN
T
:
The Input Slave's ON (OFF) delay (Minimum value: 0)
IN
T
:
The Output Slave's ON (OFF) delay (Minimum value: 0)
OUT
T
:
The Input Slave's communications time/slave
RT-IN
T
: The Output Slave's communications time/slave
RT-OUT
T
:
The PLC's cycle time
PLC
T
:
The PLC's DeviceNet Unit refresh time
RF
Note Refer to the information on each slave for details on Input and Output Slaves'
ON and OFF delay times. Refer to 7-1-2 CompoWay/F Communications
Cycle Time and Refresh Time and the Operation Manual for the PLC being
used for details on the PLC's cycle time.
The minimum I/O response time (T
T
= T
+ T
MIN
IN
RT-IN
T
PLC
T
RF
Instruction
execution
T
(T
T
)
T
RT-IN
PLC
RF
) is the total of the following terms:
MIN
+ (T
- T
) + T
PLC
RF
RT-OUT
Section 7-1
T
RT-OUT
OUT
+ T
OUT
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