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APPENDICES
Appendix 1 Details of I/O Signals
Hardware logic control stop flag at disconnection (X7)
• This signal is enabled when "Valid" is set for "Hardware logic control valid/invalid during disconnecting" in "Switch Setting".
• When Hardware logic control stop signal at disconnection (Y6) is turned off during hardware logic control, the hardware
logic control is stopped and this signal turns on. When Hardware logic control stop signal at disconnection (Y6) is turned off
while the hardware logic control is stopped, this signal does not turn on.
• When Hardware logic control stop flag clear request at disconnection (Y7) is turned on, this signal turns off.
• When Hardware logic control start request (Y4) is turned on while this signal is on, the request is ignored. Turn off this
signal by turning on Hardware logic control stop flag clear request at disconnection (Y7). Then, turn on Hardware logic
control start request (Y4).
Performed in the flexible high-speed I/O control module
Performed in the program
OFF
ON
OFF
ON
OFF
ON
ON
OFF
OFF
Hardware logic control stop
signal at disconnection (Y6)
Data link status of the head
module
Hardware logic control stop
flag clear request at
disconnection (Y7)
Hardware logic control flag
(X4)
Hardware logic control stop
flag at disconnection (X7)
Cyclic transmission
being performed
Disconnected
Cyclic transmission
being performed
Summary of Contents for MELSEC-L Series LD40PD01
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