Programming; Programming Precautions; Interlock Related Signals - Mitsubishi Electric MELSEC Q Series Reference Manual
Q corresponding melsecnet/h network system
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Also See for MELSEC Q Series:
- User manual (834 pages) ,
- Reference manual (674 pages) ,
- Programming manual (624 pages)
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6
PROGRAMMING
6 PROGRAMMING
6.1 Programming Precautions
6.1.1 Interlock related signals
6
6 - 1
When diverting the program example introduced in this chapter to the actual system,
fully check that there are no problems in the controllability of the system.
This section explains the precautions in creating programs using data on the network.
A list of the interlock signal devices used in the sequence programs is provided below.
Refer to Appendix 2, "List of the Link Special Relays (SB)" and Appendix 3, "List of the
Link Special Registers (SW)" for other explanations, such as the operation status and
setting status of the host and other stations.
When multiple network modules are installed, the interlock signal devices are
refreshed to the devices on the PLC side at 512 points (0
to the default settings as listed below.
POINT
The Q series uses the link special relays (SB) and the link special registers (SW) in
the entire intelligent function module. Therefore, do not use the same SB and SW
more than once in a program.
Assignment of the link special relay (SB) and the link special register
(SW) when multiple modules are installed
Mounting
position
Device
SB
SW
1st module
2nd module
0
to 1FF
200
to 3FF
H
H
H
H
0
to 1FF
200
to 3FF
H
H
H
H
MELSEC-Q
to 1FF
) intervals according
H
H
3rd module
4th module
400
to 5FF
600
to 7FF
H
H
H
400
to 5FF
600
to 7FF
H
H
H
6 - 1
H
H
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