Operations Of The Flexible High-Speed I/O Control Module When The Head Module Is Connected - Mitsubishi Electric MELSEC-L Series LD40PD01 User Manual

Operations of the flexible high-speed I/O control module when
the head module is connected
The following describes the operations of the flexible high-speed I/O control module when the own station is disconnected.
The operations differ depending on the combination of the setting of "Hardware logic control valid/invalid during
disconnecting" in the switch setting and that of "Error Time Output Mode" in the intelligent function module detailed setting.
"Hardware logic control valid/invalid during disconnecting" is "Valid"
When Hardware logic control stop signal at disconnection (Y6) is off, the hardware logic control is not executed. When
Hardware logic control stop signal at disconnection (Y6) is turned off during hardware logic control, the hardware logic control
is stopped.
When "Valid" is set for "Hardware logic control valid/invalid during disconnecting", the operation differs depending on the
setting of "Error Time Output Mode" as follows.
"Error Time Output Mode"
Clear
Hold
After the head module is returned, turn on Hardware logic control start request (Y4) to restart the hardware logic control.
"Hardware logic control valid/invalid during disconnecting" is "Invalid"
When "Invalid" is set for "Hardware logic control valid/invalid during disconnecting", the operation differs depending on the
setting of "Error Time Output Mode" as follows.
"Error Time Output Mode"
Clear
Hold
To continue the hardware logic control when the head module is disconnected, set "Invalid" for "Hardware logic control valid/
invalid during disconnecting".
If "Hardware logic control valid/invalid during disconnecting" is set to "Invalid", a hardware logic control stop request cannot be
issued from a program in the disconnection state.
Operation
Hardware logic control stop signal at disconnection (Y6) is turned off at the
head module disconnection, and thus the hardware logic control stops.
The external output during a hardware logic control stop varies depending on
"Error-time Output Mode" of the external output block.
Hardware logic control stop signal at disconnection (Y6) is not turned off at the
disconnection, and thus the hardware logic control will continue.
Operation
Even though the head module is disconnected, the hardware logic control
continues. However, all the Y device terminals of the hardware logic will be
turned to Low because the Y signal is turned off.
Note that the operation changes when a created hardware logic includes Y
device terminals.
Even though the head module is disconnected, the hardware logic control
continues.
13.3 When the Module Is Connected to a Head Module
13 PROGRAMMING
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