Rockwell Automation 1771-QC , D17716.5.25 SER/B SERVO POS - Manual (Page 200)

Chapter 8
8Ć39
Program Rungs for PLCĆ3
Figure 8.17 shows ladder diagram programming rungs for this application
for a PLC-3 system. The three rungs in Figure 8.17 perform the same
function as the first four rungs in Figure 8.16.
Figure 8.17
PLCĆ3 LadderĆdiagram Programming Example Rungs for Controlling 2 Axes
CNTL
EN
12
CNTL
DN
15
WD050:0003
02
WD050:0007
02
WD050:0003
02
WD050:0007
02
WB055:0000
WB055:0000
17
CNTL
ER
13
CNTL
EN
02
CNTL
DN
05
CNTL
ER
03
Rung 1
Rung 2
Rung 3
MOV
MOVE FROM A TO R
A : WD050:0102
101
R : WB055:0004
0000000011001001
BTR
BLOCK XFER READ
RACK :
GROUP :
MODULE:
DATA:
003
0
1 = HIGH
FD050:0001
LENGTH:
CNTL:
0
FB055:0000
MOV
MOVE FROM A TO R
A : WD050:0002
201
R : WB055:0004
0000000011001001
BTW
BLOCK XFER WRITE
RACK :
GROUP :
MODULE:
DATA:
003
0
1 = HIGH
FD050:0201
LENGTH:
CNTL:
0
FB055:0000