Toshiba nv Series Instruction Manual page 124

Appendix C Notes on Applying the I/O Modules
106
6F8C1220
・Input module
0
DI
1
2
3
COM
・Output module
P24
DO
0
1
2
3
COM
For example, if contact a is ON, the change timing from Output 0 to Input 0 is as follows:
CPU scanning cycle
Output 0 (internal)
Output 0 (external)
Input 0 (external)
Input 0 (internal)
Note that the change timing is influenced by the CPU scanning time and I/O response time, as
shown above.
Figure C.1-5 Dynamic scanning input
a e
b f
c g
d h
T
T
1
2
T : Output response lag
1
T : Input response lag
2
i m
j n
k o
l p