Rockwell-automation 25-COMM-E2P PowerFlex 25-COMM-E2P Dual-Port EtherN Uživatelský manuál Strana 90

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90 Rockwell Automation Publication 520COM-UM003A-EN-E - June 2013
Chapter 7 Using Multi-Drive Mode
Understanding the I/O Image
The terms input and output are defined from the scanners point of view.
Therefore, Output I/O is data that is output from the scanner and consumed by
the EtherNet/IP adapter. Input I/O is status data that is produced by the adapter
and consumed as input by the scanner.
The I/O image table will vary based on the configuration of Host parameters
C169 [MultiDrv Sel] and C175 [DSI I/O Cfg]. The image table always uses
consecutive words starting at word 0.
The Multi-Drive Example of I/O Image
on page 90 is an illustration of the
Multi-drive I/O image with 16-bit words.
Multi-Drive Example of I/O Image
(1) Padwords only apply when using the generic profile. Padwords are not used when using the full-featured drive Add-On-Profile.
Note: If a daisy-chained drive is disconnected from the RS-485 (DSI) network
or powered down, the Logic Status and Feedback words for the affected drive will
be set to 0.
Controller
Scanner
Adapter
Word and I/O
EtherNet/IP
DSI
Output
Image
(Write)
Input
Image
(Read)
Message
Handler
Message
Buer
Logic CommandWord 0
ReferenceWord 1
Drive 0
Logic CommandWord 2
ReferenceWord 3
Logic CommandWord 4
ReferenceWord 5
Logic CommandWord 6
ReferenceWord 7
Logic CommandWord 8
ReferenceWord 9
PowerFlex Drive 2
PowerFlex Drive 0
PowerFlex Drive 1
PowerFlex Drive 3
PowerFlex Drive 4
PowerFlex Drive 0
PowerFlex Drive 1
PowerFlex Drive 2
PowerFlex Drive 3
PowerFlex Drive 4
Drive 1
Drive 2
Drive 3
Drive 4
Logic StatusWord 2
FeedbackWord 3
Drive 0
Padword
(1)
Word 0
PadwordWord 1
Logic StatusWord 4
FeedbackWord 5
Logic StatusWord 6
FeedbackWord 7
Logic StatusWord 8
FeedbackWord 9
Logic StatusWord 10
FeedbackWord 11
Drive 1
Drive 2
Drive 3
Drive 4
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