Main routine, Powerflex 525 ethernet/ip multi-drive demo – Rockwell Automation 25-COMM-E2P PowerFlex 25-COMM-E2P Dual-Port EtherNet/IP Adapter User Manual
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Rockwell Automation Publication 520COM-UM003A-EN-E - June 2013
Chapter 7
Using Multi-Drive Mode
Main Routine
The Main Routine reads the network Input Image from the scanner, calls the
various drive control subroutines, and writes the network Output Image to the
scanner. See
.
Main Routine
0
1
2
3
4
5
6
(End)
Copy File
Source
Dest
Length
PowerFlex_52X_Drive_Multi_Generic:I.Data [0]
Drive_Input_Image[0]
12
Jump To Subroutine
Routine Name Drive0
JSR
COP
Copy File
Source
Dest
Length
Drive_Output_Image[0]
PowerFlex_52X_Drive_Multi_Generic:O.Data[0]
10
COP
Jump To Subroutine
Routine Name Drive1
JSR
Jump To Subroutine
Routine Name Drive2
JSR
Jump To Subroutine
Routine Name Drive3
JSR
Jump To Subroutine
Routine Name Drive4
JSR
Drive 0 control subroutine.
Drive 1 control subroutine.
Drive 2 control subroutine.
Drive 3 control subroutine.
Drive 4 control subroutine.
CompactLogix EtherNet/IP Multi-Drive example program with a PowerFlex 525 on EtherNet/IP.
Four PowerFlex 4M drives are daisy-chained to the main PowerFlex 525 using their RJ45 ports (RS-485). In this mode,
up to five PowerFlex drives can exist on one EtherNet/IP node.
This rung retrieves the Logic Status and Feedback data for all five drives from the scanner (DINTs), and moves it to
specific INT tags for use elsewhere in the ladder program. The input image is as follows:
Drive_Input_Image[2] and Drive_Input_Image[3] = Drive 0 Logic Status and Feedback
Drive_Input_Image[4] and Drive_Input_Image[5] = Drive 1 Logic Status and Feedback
Drive_Input_Image[6] and Drive_Input_Image[7] = Drive 2 Logic Status and Feedback
Drive_Input_Image[8] and Drive_Input_Image[9] = Drive 3 Logic Status and Feedback
Drive_Input_Image[10] and Drive_Input_Image[11] = Drive 4 Logic Status and Feedback
This rung writes the output image to the scanner. The output image is as follows:
Drive_Output_Image[0] and Drive_Output_Image[1] = Drive 0 Logic Command and Reference
Drive_Output_Image[2] and Drive_Output_Image[3] = Drive 0 Logic Command and Reference
Drive_Output_Image[4] and Drive_Output_Image[5] = Drive 0 Logic Command and Reference
Drive_Output_Image[6] and Drive_Output_Image[7] = Drive 0 Logic Command and Reference
Drive_Output_Image[8] and Drive_Output_Image[9] = Drive 0 Logic Command and Reference
PowerFlex 525 EtherNet/IP Multi-Drive Demo