Compactlogix example ladder programs 7-17 – Rockwell Automation 1769-SM2 Compact I/O DSI/Modbus Communication Module User Manual

Page 119

Advertising
background image

CompactLogix Example Ladder Programs

7-17

Figure 7.6 Example CompactLogix Multi-Drive Ladder Logic CH1 Drive 0 Subroutine

1769-SM2 Channel 1 Drive 0 Subroutine

The following rungs display some of the Logic Status bits from the drive. Refer to Appendix D in the 1769-SM2 user manual

for additional information about the Logic Status word.

0

CH1 Drv0

Logic Status

Bit 00

Local:1:I.Data[1].0

CH1_Drv0_Ready

i

1

CH1 Drv0

Logic Status

Bit 01

Local:1:I.Data[1].1

CH1_Drv0_Active

2

CH1 Drv0

Logic Status

Bit 03

Local:1:I.Data[1].3

CH1_Drv0_Forward

3

CH1 Drv0

Logic Status

Bit 07

Local:1:I.Data[1].7

CH1_Drv0_Fault

4

CH1 Drv0

Logic Status

Bit 08

Local:1:I.Data[1].8

CH1_Drv0_At_Speed

This rung displays the Feedback from the drive. An integer represents the xxx.x Hz format (decimal is implied) used by the

drive, so a displayed value of "300" equates to 30.0 Hz.

5

Move

Source

Local:1:I.Data[2]

0

Dest CH1_Drv0_Feedback

0

MOV

The following rungs display some of the Logic Command bits sent to the drive. Refer to Appendix D in the 1769-SM2 user

manual for additional information about the Logic Command word.

6

CH1_Drv0_Stop

CH1 Drv0

Logic Command

Bit 00

Local:1:O.Data[1].0

Advertising