5
MEMORIES AND FILES HANDLED BY CPU MODULE
5.1 Basic Model QCPU
5.1.5 Standard ROM program execution (boot run) and writing
5
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1
Overview
2
Performance
Specification
3
Sequence Program
Configuration and
Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files
Handled by CPU Module
6
Functions
7
Communication with
Intelligent Function
Module
8
Parameters
(3) Additions/changes to standard ROM files
Since all files stored in the standard ROM are automatically deleted when files are to
be written to the standard ROM, additions/changes to the stored files cannot be made
directly.
Observe the following steps.
1) Choose [Online] [Read from PLC] on GX Developer and read all files from
the standard ROM.
2) Make necessary additions/changes to the read files.
3) Write the modified files to the program memory.
4) Choose [Online] [Write to PLC (Flash ROM)] [Write the program memory
to ROM...], and copy these files to the program memory.
(4) Precautions
(a) Setting of check at communication time of GX Developer
When files are written to the standard ROM with the communication time check
time set to 180 seconds or less on GX Developer, they are checked 180 seconds.
(b) When writing files from GX Developer of other station via CC-Link
Since long processing time is required for writing files to the standard ROM, set
the CPU monitoring time setting (SW0A) of CC-Link to 180 seconds or more.
Diagram 5.12 Write from GX Developer of other station (via CC-Link)
GX Developer of other station
CPU module where file is
written to standard ROM
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