Rockwell Automation 1769-SM2 Compact I/O DSI/Modbus Communication Module - Manual (Page 81)

Chapter
6
MicroLogix 1500 Example Ladder
Programs
This chapter provides ladder examples for a MicroLogix 1500 controller
used with a 1769-SM2 module in Single mode and Multi-Drive mode.
The ladder example provided in this section is based on a 1769-SM2
module in slot 1 with one PowerFlex 4/40 drive connected to each
channel (
Figure 6.1 ). The ladder example demonstrates the following
functionality for each channel:
•
Send a Logic Command to control the drive (for example, start, stop).
•
Send a Reference to the drive and receive Feedback from the drive.
•
Receive Logic Status information from the drive.
•
Write and read parameters.
Explicit messaging (parameter read/write) capability varies between the
RSLogix software packages and controllers:
•
Versions of RSLogix 500 before v6.30 do NOT support creating a
Message instruction for the 1769-SM2 module. This limits the
MicroLogix 1500 to performing I/O messaging (Logic Command/
Reference, and Logic Status/Feedback) only.
•
RSLogix 500 v6.30 (or higher) must be used with a MicroLogix
1500 LRP Series C (or newer) controller to create Message
instructions to send explicit messages to the 1769-SM2 module.
Topic Page
Single Mode 6-1
Multi-Drive Mode 6-8
Single Mode