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Example 3) When a ladder block is to be added online, the executional conditioned device test setting
included in the ladder block followed after the added ladder block will be disabled.
For this reason, if the online change function is executed as shown in Figure 6.49, the registration 2 is
disabled.
Registration 1
Registration 2
Registration 3
2) Online change (files)
All executional conditioned device test settings registered to the program in the online change target file are
disabled.
(f) Precautions for specifying an index-modified device
If an index-modified device name is specified to register the executional conditioned device test setting, the
CPU module does not check whether the specified device is within the setting range.
If the index-modified device is out of the device range or on the boundary of devices, a device value will not be
changed within the specified step.
(g) Precautions for specifying an indirectly-specified device
If indirectly-specified device name is specified to register the executional conditioned device test setting, the
CPU module does not check whether the specified device is within the setting range.
If the indirectly-specified device is out of the device range or on the boundary of devices, a device value will not
be changed within the specified step.
(h) Precautions for specifying the file register
If the file register is specified to register the executional conditioned device test setting, the CPU module does
not check the file register file assignment and the file register number range.
A file register value will not be changed within the specified step in the following cases.
• The file register file is not assigned.
• The specified file register number is out of the file register range.
*
The shaded area is the ladder block to be changed online.
Figure 6.49 Adding a ladder block online
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