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6.11.4  Executional conditioned device test

This function changes a device value within the specified step of a program.

Note1

This enables debugging of the specified ladder block without modifying the program.

*1

*1: The executional conditioned device test is not available for the SFC program.

A device value will be changed based on the registration data once after the executional conditioned device test 
setting is registered.
The changed device value becomes effective in the ladder blocks of the specified step number and later.

Note that a device value is changed within the specified step regardless of an execution status of the instruction in 
the specified step.

Note1

Note6.4

When using the executional conditioned device test in the Q02UCPU, Q03UDCPU, Q04UDHCPU, Q06UDHCPU, 

Q13UDHCPU, or Q26UDHCPU, check the versions of the CPU module and GX Developer.(

GX Developer

Program name 
Step No. 
Device 
Setting value

Execution timing 

: MAIN
: 10
: M0
: ON

: Before executing instruction

Registration data

M0 is turned on.

Program: MAIN

<Program example>

<Operation>

Processing

LD  M0

10

35

OFF

45

Changes the value in D0 to "35".

+ K10  D0

Value in D0

Value in M0

Executional conditioned device test which  
sets "35" in D0 in this step is registered.

A device value is changed within the  
specified step regardless of the value in M0.

List mode

Ladder mode