Communication Time - Hitachi S10mini Hardware Manual

4 USER GUIDE

4.8 Communication Time

The J.NET module communication time depends on how the J.NET system is configured.
When the J.NET module is connected to J.STATIONs (I/O communication only and data not
transmitted)
J.NET module
J.STATION
J.STATIONs are mounted on an I/O unit to constitute a remote I/O unit.
The J.NET module automatically inputs and outputs data to and from PI/O units (I/O service) in
the set refresh cycle.
The time that the J.NET module and a J.STATION require for a single I/O communication (I/O
service) depends on the number of PI/O points.
Set a greater value than the total I/O communication time of all J.STATIONs as a refresh cycle.
J.STATION
For N-point I/O unit
J.STATION
1.85+0.0031N [ms] (1 Mbps)
2.35+0.0054N [ms] (0.5 Mbps)
3.45+0.0092N [ms] (0.25 Mbps)
4.85+0.0176N [ms] (0.125 Mbps)
4-30
J.STATION