Example Plc Ladder Logic Program - Allen-Bradley 1203 Series User Manual

4–8 Creating Ladder Logic Programs
Example PLC Ladder Logic
Program
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Refer to page 4–5 for the settings of the module and the 1336 PLUS
drive used for this example.
Figure 4.3
Machine
START
Pushbutton
I:000
0
Machine
STOP
Pushbutton
I:000
1
Drive Drive
STOP Running
Command Status Bit
O:020 I:020
0 1
Machine
JOG
Pushbutton
I:000
2
Machine
Clear Faults
Pushbutton
I:000
3
Drive
Running
Status Bit
I:020
1
Drive
Faulted
Status Bit
I:020
7
Example Ladder Logic Program for a PLC
Drive
START
Command
O:020
1
Drive
STOP
Command
O:020
0
Drive Frequency
Command
MOV MOV
Move
Source N7:0
16000 <
Dest O:021
16000 <
Drive
JOG
Command
O:020
2
Drive
Clear Faults
Command
O:020
3
Machine
Running
Indicator
O:000
0
Machine
Faulted
Indicator
O:000
1
Drive Data In A1
(Data to Drive)
MOV MOV
Move
Source N7:1
500<
Dest O:022
500<
END