Performing High-Speed Processing (Event Issuance For The Interrupt Program) - Mitsubishi MELSEC Q Series User Manual

4 FUNCTIONS

4.4.2 Performing high-speed processing (Event issuance for the interrupt program)

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This function issues events (signals to execute an interrupt program) according to
factors such as the on/off status of specified RX, RY and SB devices and the
match/mismatch status of specified RWr and SW device data, in order to allow the
PLC CPU to execute the interrupt program.
Because the conditions for issuing the events are set using the GX Developer, the
number of program steps is reduced, thus shortening the scan time.
Events can be issued for all stations.
A maximum of 16 event issuance conditions can be set.
(1) Event issuance conditions
Events are issued under the following conditions:
On/off status of specified RX, RY and SB devices
Match/mismatch status of specified RWr and SW device data
When the link scan is completed
(2) Event issuance condition setting method
(a) First, set the "Interrupt setting" in the network parameters.
1) Input format
Set the data input format for "Word device".
Setting range: DEC.
Default:
2) Device code
Set the device to be used for the event issuance conditions.
Setting range: RX
3) Device No.
Set the device number to be used for the event issuance conditions.
Setting range: When RX or RY is selected
4) Detection method
Set the detection method for the event issuance conditions.
Setting range: Edge detect (Issues event only at rise and fall.)
HEX.
DEX.
SB
RY
RWr
SW
Scan completed
When SB or SW is selected
When RWr is selected
Level detect (Issues each link scan event when the event
issuance conditions are established.)
MELSEC-Q
0 to 1FFF (H)
0 to 01FF (H)
0 to 07FF (H)
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