iDect FC6A series, User Manual

Page: 218 / 474

5: F
UNCTIONS AND
S
ETTINGS
5-32 FC6A S
ERIES
M
ICRO
S
MART
A
LL
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IN
-O
NE
T
YPE
U
SER
’
S
M
ANUAL
FC9Y-B1722
2.
Select Catch Input in the Groups 1 through 4 pull-down list boxes. The Catch Input dialog box appears.
3.
Select Catch Input Rising Edge or Catch Input Falling Edge in the pull-down list.
Catching Rising Edge of Input Pulse
Catching Falling Edge of Input Pulse
Note: When two or more pulses enter within one scan, subsequent pulses are ignored.
Example: Maintaining Catch Input
When a catch input is received, the catch input relay assigned to a catch input is turned on for only one scan. This example
demonstrates a program to maintain a catch input status for more than one scan.
Actual Input
ON
OFF
Catch Input Relay
ON
OFF
(M8153-M8157, M8160)
Note
END
Processed
1 scan time
Actual Input
ON
OFF
Catch Input Relay
ON
OFF
(M8153-M8157, M8160)
Note
END
Processed
1 scan time
Input I1 is designated as a catch input using the Function Area Settings.
When input I1 is turned on, special internal relay M8154 is turned on, and
M0000 is maintained in the self-holding circuit.
When NC input M0001 is turned off, the self-holding circuit is unlatched, and
M0000 is turned off.
M0000 is used as an input condition for the subsequent program instructions.
M8154
M0000
M0001 M0000