GE P485 - Manual (Page 57)

P485 MODBUS TO PROFIBUS CONVERTER – USER GUIDE 9–1
GE Consumer & Industrial
P485 Modbus to Profibus
Converter
Chapter 9: Application example
Application example
Introduction
OVERVIEW The chapter describes how to configure the P485 Modbus to Profibus Converter to allow
GE Multilin relays and meters to communicate on a Profibus Network. The GE Multilin MM2
Motor Manager 2 and PQMII Power Quality Meter are used as examples.
GE Multilin relays and meters support a very useful feature called the Modbus User
Map in their software. This feature can be used in configuring the P485 to reduce the
number of Modbus transactions and improve communication speed.
It is assumed that the reader is familiar with serial communication, Profibus networks, and
PLC architecture.
EQUIPMENT AND
DOCUMENTS
The examples in this chapter make use of the following equipment and documentation
• P485 Modbus to Profibus Converter
• RS485 cable to connect P485 to the relays/meters (MM2 and PQMII)
• Enervista P485/D485 Setup software with configuration cable
• GSD file for the P485
• standard Profibus cable with connectors
• 24 V DC power supply for the P485
• PLC with Profibus master card
• PQMII Power Quality meter and instruction manual (publication code GEK-106435D)
• Enervista PQMII Setup software
• MM2 relay and instruction manual (publication code GEK-106294B)
• MM2PC software