Computing the Cycle Time
10-4-3 I/O Unit Refresh Times for Individual Units and Boards
Basic I/O Unit Refresh
502
Unit
C200H
8-point Input Unit
Basic I/O
8-point Output Unit
Units
12-point Output Unit
16-point Input Unit
16-point Output Unit
Interrupt Input Unit
C200H
32-point Input Unit
Group-2
32-point Output Unit
High-den-
64-point Input Unit
sity I/O Unit
(classified
64-point Output Unit
as Basic I/O
32-point B7A Input Units
Units)
32-point B7A Output Units
16/16-point B7A I/O Units
32/32-point B7A I/O Units
Name
C200H-ID211
C200H-OC221
C200H-OA224
C200H-ID212
C200H-OD212
C200HS-INT01
C200H-ID216
C200H-OD218
C200H-ID217
C200H-OD219
C200H-B7A12
C200H-B7A02
C200H-B7A21
C200H-B7A22
Section 10-4
Model
I/O refresh
time per Unit
0.03 ms
0.03 ms
0.03 ms
0.02 ms
0.03 ms
0.10 ms
0.10 ms
0.10 ms
0.20 ms
0.13 ms
0.1 ms
0.1 ms
0.1 ms
0.2 ms