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5.2 High Performance Model QCPU, Process CPU and Redundant CPU
5.2.3 Standard ROM
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MEMORIES AND FILES HANDLED BY CPU MODULE
5.2.3 Standard ROM
(1) Definition of standard ROM
The standard ROM stores parameters, programs and other data for running boot on
the High Performance model QCPU, Process CPU or Redundant CPU.
The standard ROM is used to save programs and parameters without battery backup.
(2) Storable data
The standard ROM can store parameters, intelligent function module parameters,
programs, device comments and device initial value data.
Refer to Section 5.2.1(2) for the list of data that can be stored into each memory.
(3) Checking the memory capacity
To check the memory capacity, choose [Online] [Read from PLC] on GX Developer.
1) Select "Standard ROM" as the target memory on the Read from PLC screen.
2) Click the button.
3) The memory capacity appears in the Total free space volume field.
Diagram 5.17 Memory capacity checking procedure
Free space volume
1) Select target memory.
2) Click Free space volume button.
3) Memory capacity is displayed.
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