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6
FUNCTIONS
6
- 56
6.14 Writing in Program during CPU Module RUN
6.14.1 Online change in ladder mode
(d) Changing the "allocate memory for online change" for online change
The following explains the precautions for changing the "allocate memory for
online change" for online change.
1) The allocate memory for online change
A program file has steps secured for online change to support online change
that changes the program file capacity.
The program file capacity is the sum of the created program capacity and
"allocate memory for online change".
2) When program file capacity increases from the secured capacity
If the capacity secured for the program file capacity (capacity including the
allocate memory for online change) is exceeded at the time of online change,
the allocate memory for online change can be re-set for online change.
Hence, online change can be executed when the user memory area has a free
area.
3) Scan time increased when allocate memory for online change are set
again
The scan time increases, when the online change reserve step is re-set in
online change.
For increased scan time, refer to Section 10.1.3.
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