Table of Contents
Advertisement
3.11.3
External input/output forced on/off
The external input/output can forcibly be turned on/off using a programming tool. The information registered for forced
on/off can be cancelled by an operation from a programming
(1) Input/output operation when a forced on/off operation is performed
There are three kinds of forced on/off operations: forced on ("Set forced ON"), forced off ("Set forced OFF"), and
forced on/off cancellation ("Cancel it"). The following table lists the CPU module operation of when a forced on/off
operation is performed.
Operation
Forced on/off
cancellation (no
operation)
Forced on
Forced off
Note 3.4
Universal
Before executing the function with the Q02UCPU, Q03UDCPU, Q04UDHCPU, Q06UDHCPU, Q13UDHCPU, or
Q26UDHCPU, check the versions of the CPU module and programming tool used.
(
154
Output forced on/off operation
Output refresh
Input refresh
Input forced on/off operation
Program execution
MO
External input is
XO
forcibly turned off.
Y10
On the ladder block, Y10 appears to be on even
though a forced off operation is performed.
Input (X) operation
The CPU module performs sequence program
operations using external inputs.
The CPU module performs sequence program
operations using inputs forcibly turned on.
The CPU module performs sequence program
operations using inputs forcibly turned off.
Page 465, Appendix 2)
Note 3.4
tool.Note 3.4
Y10 device forced off
Y10 output
(off)
X0 input
(on)
X0 device forced off
Y10
Y11
M1
END
The CPU module outputs the results of sequence
program operations externally.
The CPU module outputs "on" externally
regardless of the results of sequence program
operations.
The CPU module outputs "off" externally
regardless of the results of sequence program
operations.
External output
(Y10 off)
External input
(X0 on)
Output (Y) operation
Advertisement
Table of Contents
