Rockwell Automation 1336-GM6 Enhanced DeviceNet Communications Module - Manual (Page 68)

6-6 Ladder Logic Programming
Figure 6.2 Example PLC Ladder Logic Program (Continued)
The following table represents the control file for the block transfers.
0007
I:000
12
Operator Input
Drive Jog
Command Bit
N10:1
2
1305 Drive
JOG
Command Bit
0008
I:000
13
Operator Input
Drive Clear Faults
Command Bit
N10:1
3
1305 Drive
CLEAR FAULT
Command Bit
0009
MOV
Move
Source
N21:0
0<
Dest N10:2
0<
MOV
1305 Drive
REFERENCE
Command Word
The Block Transfer Write in this rung send the drive command data to the scanner and out to the drive via DeviceNet.
0010
BT20:1
EN
EN
DN
ER
BTW
Block Transfer Write
Module Type Generic Block Transfer
Rack
000
Group 0
Module 0
Control Block BT20:1
Data File N10:0
Length 62
Continuous No
BTW
0011 END
This rung enables the scanner.
0004
N10:0
0
1771-SDN Scanner
Port A Enable
Rungs 0005 through 0009 move the operator’s inputs from the operator station to the Block Transfer Write data file
where they will be sent to the scanner and out to the drive via DeviceNet.
0005
I:000
10
Operator Input
Drive Start
Command Bit
N10:1
1
1305 Drive
START
Command Bit
0006
I:000
11
Operator Input
Drive Stop
Command Bit
N10:1
0
1305 Drive
STOP
Command Bit
Offset EN ST DN ER CO EW NR TO RW RLEN DLEN FILE ELEM R G S
BT20:0 0 0 0 0 0 0 0 0 0 62 0 9 0 00 0 0
BT20:1 0 0 0 0 0 0 0 0 0 62 0 10 0 00 0 0