Omron SYSMAC CS1D-PD Series Operation Manual page 404

Computing the Cycle Time
Factor 4
3.5
3
2.5
2
1.5
1
5
364
Note Longer I/O refresh times will be required according to the distance from the
CPU Rack to the Unit when these Units are mounted to Long-distance Expan-
sion Racks. Multiply the values given in the table by the factors on line *1 in
the following graph.
2.5
1.5
1.1
10 15 20
(*3)
(*1)
(*2)
25 30 35
Section 9-4
4
1.8
1.3
40 45 50
Distance to Unit (m)