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6.12 Writing in Program during CPU Module RUN
6.12.1 Online change in ladder mode
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FUNCTIONS
(6) 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.
(a) 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".
(b) 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.
(c) 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 11.1.3.
(7) For the prohibited operations
when writing data during RUN, when
changing T/C setting value, or at the time of transferring from a program
cache memory to a program memory
For the prohibited operations when writing data during RUN, when changing T/C
setting value, or at the time of transferring from a program cache memory to a
program memory, refer to Section 6.12.3 (2).
(8) Instruction which does not operate normally when writing data during
RUN
For instructions do not operate normally at write during RUN,
refer to Section 6.12.3 (3) in this section.
Note25
Note25
Note6.23
Process
Redundant
Basic
High
Performance
Note6.23
Note6.23
Note6.23
Since a program cache memory is not used for the Basic model QCPU, High Performance model
QCPU, Process CPU, or Redundant CPU, data transfer from the program cache memory to the
program memory can be ignored.
Process
Redundant
Basic
High
Performance
