Rockwell Automation 20-COMM-R Remote I/O Adapter - Manual (Page 51)

Using Discrete and Block Transfer I/O 4-15
20-COMM-R Remote I/O Adapter User Manual
Publication 20COMM-UM004D-EN-P
PLC-5 Controller Example Figure 4.9 PLC-5 Example Ladder Logic for Main Routine
This rung handles the logic needed to stop the drive upon the user's command. As shown, the user STOP input must be a normally closed pushbutton.
If the drive is running, pressing the STOP button will seal the stop command bit until the drive comes to a complete stop.
0000
N7:0
0
User
STOP
Input
I:011
1
Drive
RUNNING
Status
O:011
0
Drive
STOP
Command
O:011
0
Drive
STOP
Command
This rung allows the user to start the drive. Note that the drive may not start if the user briefly taps the button.
0001
N7:0
1
User
START
Input
O:011
1
Drive
START
Command
This rung allows the user to Jog the drive.
0002
N7:0
2
User
JOG
Input
O:011
2
Drive
JOG
Command
This rung allows the user to clear any faults present in the drive.
0003
N7:0
3
User
CLEAR FAULTS
Input
O:011
3
Drive
CLEAR FAULTS
Command
This rung moves the Reference from the User Operator Station to the Block Transfer Write file where it is moved to the drive by Block Transfer.
0004
MOV
Move
Source N7:1
10000<
Dest N10:0
10000<
MOV
This rung moves the READY status bit from the drive to the user display.
0005
I:011
0
Drive
READY
Status
N7:10
0
User
DRIVE READY
Status
This rung moves the RUNNING status bit from the drive to the user display.
0006
I:011
1
Drive
RUNNING
Status
N7:10
1
User
DRIVE RUNNING
Status
This rung moves the AT SPEED status bit from the drive to the user display.
0007
I:011
10
Drive
AT SPEED
Status
N7:10
2
User
DRIVE AT SPEED
Status
This rung moves the drive Feedback word from the Block Transfer Read file to the User Operator Station.
0008
MOV
Move
Source N11:0
0<
Dest N7:11
0<
MOV
This rung executes the file containing the I/O Block Transfer logic. See Figure 4.10, PLC Block Transfer I/O Read/Write.
0009
JSR
Jump To Subroutine
Prog File Number U:3
JSR
This rung executes the file containing the Messaging Block Transfer logic. See Figure 5.4, PLC Block Transfer Messaging.
0010
JSR
Jump To Subroutine
Prog File Number U:5
JSR
0011 END