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5 - 11
MELSEC-F
COMMUNICATION PROCEDURE5
5 - 11
(2) Programming and timing for re-initialization
The programming and timing for re-initialization is shown below:
•For FX
3U/FX3UC Series PLCs
Program example for the unit No. 1
1) It is confirmed whether the initial processing has been completed
normally.
2) All data communication currently being performed with external devices
is terminated, and close processing will be performed on all connections.
3) "0001
H ", "0002H ", "0005H " or "0006H " is written to BFM#1600.
(Initial normal completion signal: BFM#27 "0001
H ")
(Open completion signal: BFM#20480 "All OFF(0
H)")
4) When re-initialization is completed, the value in BFM#1600 will be 8000
H
(normal completion) or C000
H (abnormal completion).
* If the re-initialization is completed abnormally, the error code is stored
in the following area.
Initial error code storage area (BFM#105)
<<Re-initialization>>
Instruction
= H0001
= H8000
= HC000
MOVP
Processing upon normal
completion
Processing upon abnormal
completion
H0001
Upon completion of Ethernet
module initial processing,
re-initialization is performed
Re-initialization request self-holding
Self-holding cancel
Processing upon normal completion
Abnormal end
BFM #27 is set to "0000
H
"
at abnormal end.
U1\
G1600
U1\
G1600
U1\
G1600
U1\
G27
M1
M0
M0
M1
Close processing Re-initialization
Initial Processing normal completion signal
BFM#27=0000
H/0001H
Open completion signal
BFM#20480
Re-initialization request
TO BFM#1600
Re-initialization status
FROM BFM#1600
1)
2)
3)
4) 8000
H(Normal completion)/
C000
H(Abnormal completion)
0001
H
0002H
0000H
Module initialization
(Normal)
(Abnormal)