GE General Electric Outboard Motor LM10 Manuale Utente

CHAPTER A: 

LM10 AND ALLEN-BRADLEY SLC500 VIA DEVICENET™

LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL

A–17

This section describes DeviceNet communications between the Allen-Bradley SLC500 PLC 
card with the GE Multilin LM10 Motor Protection System.

The application example shows how to establish communications between Allen-Bradley 
SLC500 PLC (1747-SDN DeviceNet Scanner) card with the LM10 via Polled I/O Messaging, 
COS I/O Messaging, and Explicit Messaging.

The hardware for the setup example is indicated below:

• PLC: Allen-Bradley SLC500
• CPU: 5/03
• Power Supply: 1746-P1
• DeviceNet Scanner Card: 1747-SDN
• 4 Slot Rack: 1746-A4
• Interface Adapter DeviceNet to RS232: 1770-KFD
• The following Rockwell automation software is used:
• RSLogix  500
• RSNetworx for DeviceNet
• RSLinx
• The following settings are stored in the LM10:
• MAC  ID:  09
• Baud Rate: 125
• Pin 21 (control input) connected to 110 V

Before setting up the DeviceNet network, perform the following steps.

Z

Start the RSLinx, RSNetworx, and RSLogix software and load the 
corresponding drivers in RSLinx.

Z

Establish Polled I/O, COS I/O, and Explicit Messaging between the 
slave LM10 relay and the DeviceNet scanner card 1747-SDN.

The Polled I/O messaging is for control and monitoring. The COS I/O messaging is for 
monitoring only. Explicit Messaging is used to retrieve byte wide data (for example, motor 
run time in hours, line voltage).

Set up the DeviceNet network as follows: