286
I/O Response Time in Tag Data Links Section 10-3
The following table gives the items required to find the I/O response time and
values used in calculations for this system configuration.
Maximum Tag Data Link I/O Response Time
You can find the maximum I/O response time from the total of (1) to (6) in the
following figure.
PLC#1
EtherNet/IP
PLC#2
PLC#3
Node 1
Node 2
Node 3
Input switch (external input device)
Input
W000.01
W000.01
Output
Output relay (external output device)
Tag Data Link Table
PLC#1
PLC#2
PLC#3
Outputs
RPI = 10 ms
RPI = 10 ms
W000
722 words x 16 connections
Total: 11,552 words
W000
Inputs
Inputs
256 words x 16 connections
Total: 4,096 words
RPI = 100 ms
Outputs
Connection 1
Item Value used in calculation example
PLC#1 PLC#2
External I/O device delay time Input device delay:
1.5 ms
Output device delay:
2.0 ms
Cable length 50 m
CPU Unit model CJ2H CPU Unit CJ2H CPU Unit
RPI 10 msec ---
Number of receive connections 0 32
CPU Unit cycle time 10 msec 15 msec
Total number tag
data link words
Number of send
words
11,552 None
Number of
receive words
None 15,648
To Next Page
Loading...
Need help?
General
