Rockwell Automation 20-750-PBUS Profibus DPV1 Option Module - Manual (Page 52)

52 Rockwell Automation Publication 750COM-UM004B-EN-P - September 2012
Chapter 5 Using the I/O
Understanding the I/O
Image The terms ‘input’ and ‘output’ are defined from the controller’s point of view.
Therefore, output I/O is data that is produced by the controller and consumed by
the option module. Input I/O is status data that is produced by the option
module and consumed as input by the controller. The I/O image will vary based
on how many of the drive’s 32-bit Datalinks (
Host DL From Net 01-16 and Host
DL To Net 01-16 ) are used.
Profibus Master Image
The I/O image can be configured based upon the number of Datalinks required
by the user.
Table 3 shows the I/O image when using all of the 32-bit Datalinks.
Table 3 - Profibus Master I/O Image for PowerFlex 750-Series Drives
(32-bit Logic Command/Status, Reference/Feedback, and Datalinks)
Using Logic Command/
Status The Logic Command is a 32-bit word of control data produced by the controller
and consumed by the option module. The Logic Status is a 32-bit word of status
data produced by the option module and consumed by the controller.
• Logic Command word is always the first 32-bit word in the output image.
• Logic Status word is always the first 32-bit word in the input image.
This manual contains the bit definitions for compatible products available at the
time of publication in
Appendix C , Logic Command/Status Words: PowerFlex
750-Series Drives .
DINT Output I/O DINT Input I/O
0 Logic Command 0 Logic Status
1 Reference 1 Feedback
2 DL From Net 01 2 DL To Net 01
3 DL From Net 02 3 DL To Net 02
4 DL From Net 03 4 DL To Net 03
5 DL From Net 04 5 DL To Net 04
6 DL From Net 05 6 DL To Net 05
7 DL From Net 06 7 DL To Net 06
8 DL From Net 07 8 DL To Net 07
9 DL From Net 08 9 DL To Net 08
10 DL From Net 09 10 DL To Net 09
11 DL From Net 10 11 DL To Net 10
12 DL From Net 11 12 DL To Net 11
13 DL From Net 12 13 DL To Net 12
14 DL From Net 13 14 DL To Net 13
15 DL From Net 14 15 DL To Net 14
16 DL From Net 15 16 DL To Net 15
17 DL From Net 16 17 DL To Net 16