Toshiba nv Series - Page 132

Appendix C Notes on Applying the I/O Modules
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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)
T
1
： Output response lag
T
2
： Intput response lag

T
1

T
2

Note that the change timing is influenced by the CPU scanning time and I/O response time, as
shown above.
Figure C-5 Dynamic scanning input
・
Input module
・ Output
module