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8.
COMMUNICATIONS USING DEDICATED PROTOCOLS
MELSEC-A
8.1 2.2
Program readlwrite control procedures
(1)
Reading
PROGRAM READ
F =
Execute parameter data read
command (PRI
I
Execute main sequence TIC set
value read command (MRI
I
A
(if there are no subsequence programs)
- - -
1
Execute microcomputer s u b
program read command (VR)
-
(if there is no comment data)
Execute comment data read
command (KR)
I
(if there is no extension comment data)
Execute extension comment
Execution possible only with
data read command (OR)
A2A CPU and A3A CPU
Execute subsequence TIC set
value read command (SR)
t
(if there are no microcomputer programs)
READ COMPLETE
-
,
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