Chapter 14 PLC Function
|
C200 Series
14-37
Mnemonic Function
ORF
Falling-edge parallel connection
X0~X17 Y0~Y17 M0~M799 T0~159 C0~C79 D0~D399
Operand
9
9
9
9
9
-
The ORP commands are used in the parallel connection of the contact’s falling-edge
detection.
Command code:
Operation:
LD
X0
Load A contact of X0
ORF
X1
X1 falling-edge
detection in parallel
connection
Example
Ladder diagram:
X0
X1
Y1
OUT Y1
Drive Y1 coil
Mnemonic Function
PLS
Rising-edge output
X0~X17 Y0~Y17 M0~M799 T0~159 C0~C79 D0~D399
Operand
-
9
9
-
-
-
When X0=OFF
→
ON (rising-edge trigger), PLS command will be executed and M0 will
send the pulse of one time which the length is the time needed for one scan cycle.
Command code:
Operation:
LD
X0
Load A contact of X0
PLS
M0
M0 rising-edge output
LD M0
Load the contact A of
M0
SET Y0
Y0 latched (ON)
Example
Ladder diagram:
X0
M0
PLS
M0
Y0
SET
Timing diagram:
X0
M0
Y0
Time for one scan cycle
Mnemonic Function
PLF
Falling-edge output
X0~X17 Y0~Y17 M0~M799 T0~159 C0~C79 D0~D399
Operand
-
9
9
-
-
-
When X0= ON
→
OFF (falling-edge trigger), PLF command will be executed and M0
will send the pulse of one time which the length is the time for scan one time.
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Call 1(800)985-6929 for Sales
deltaacdrives.com
sales@deltaacdrives.com