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10 TEST FUNCTION
10.2 Device test with execution conditions
■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).
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).
(1) The registration of the device test with execution conditions of the instruction immediately after the instruction to be added is disabled.
(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.
(1)
Registration 1 Registration 2 Registration 3
Before
Registration 1
Disabled
Registration 3Registration 2
After
AND M15 is added.
(2)
(1)
Registration 1 Registration 2 Registration 3
Before
Registration 1
Disabled
Registration 3Registration 2
After
AND X11 is changed to AND X16.
AND M15 is added.
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