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Rockwell Automation DeviceNet Communications Module User Manual

Page 59

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Using I/O Messaging

6-11

Figure 6.8 – Sample SLC Ladder Logic Program (continued)

0011

I:1

23

1747-SDN

Node 1
Logic Status
FAULTED

B3:1

7

Node 1
FAULTED

0012

I:1

24

1747-SDN

Node 1
Logic Status
AT REFERENCE

B3:1

8

Node 1
AT REFERENCE

This rung displays the Feedback word for the MD65 drive. N7:1 would be used
elsewhere in the user program. Note that the Feedback for the MD65 drive is set
in Hz and not in engineering units. For example, "300" equates to 30.0 Hz
(the decimal point is always implied).

0013

MOV

Move
Source

I:1.2

300 <
Dest

N7:1

300 <

MOV

Node 1
FEEDBACK
(Hz)