Mitsubishi Electric MELSEC iQ-R Series User Manual page 252

■Online change (ladder block) (with adding instruction)
When an instruction is added by the online change (ladder block), the registration of the device test with execution conditions
of the instruction immediately after the instruction to be added is disabled.
In the following example, an instruction is added by the online change (ladder block). In this case, when the device test with
execution conditions is registered to the instruction immediately after the added instruction, the relevant registrations are
disabled upon the execution of the online change (ladder block).
Before
After
(1) The registration of the device test with execution conditions of the instruction immediately after the instruction to be added is disabled.
However, when an instruction to be added is adjacent to an instruction to be changed, the registration of the device test with
execution conditions of the instruction immediately after the instruction to be added is not disabled.
In the following example, an instruction to be added is adjacent to an instruction to be changed. Therefore, even when the
device test with execution conditions is registered to the instruction immediately after the instruction to be added, the relevant
registration is not disabled by the execution of the online change (ladder block).
Before
After
(1) Although this instruction is located immediately after the added instruction, the registration of the device test with execution conditions is not disabled
because the added instruction is adjacent to the changed instruction.
(2) The registration of the device test with execution conditions is disabled because the instruction is changed.
19 TEST FUNCTION
250
19.2 Device Test with Execution Conditions
Registration 1 Registration 2 Registration 3
AND M15 is added.
Registration 1 Registration 2
Disabled
Registration 1 Registration 2 Registration 3
AND X11 is changed to AND X16.
AND M15 is added.
Registration 1 Registration 2
(1)
Disabled
(2)
Registration 3
(1)
Registration 3