GE instruction manual About the P485 Modbus to Profibus Converter, Features

INTRODUCTION

About the P485 Modbus to Profibus Converter

APPLICATION The P485 Modbus to Profibus Converter (or P485) acts as a gateway between the Modbus protocol and a Profibus-DP network. Integration of industrial devices is enabled without loss of functionality, control, and reliability, both when retrofitting to existing equipment as well as when setting up new installations.

Profibus network

Profibus

Profibusmaster (PLC) master (PLC)

HMI

HMI
	network	Profibus
Profibus slave	Profibus	slave

PC for configuration and monitoring

	P485
P485
PC for configuration	Multi-drop
and monitoring
RS232 port

Single-node Modbus network

Multi-node Modbus network

Figure 1-2: Typical applications

Features

GENERAL FEATURES	•	DIN-rail mountable
	• Save/load configuration in flash
	• CE, UL, and cUL marked
MODBUS NETWORK	•	RS232/RS422/RS485 communications
	• Multi-drop or single-node configurations
	• Modbus RTU Master mode
	• Supports up to 50 commands
	• Configuration via EnerVista P485/D485 Setup software
FIELDBUS INTERFACE	• Complete Profibus-DP slave functionality according to IEC 61158
FEATURES	• Node Address range: 1 to 99 using on board switches
	• Baud rate range: 9.6 kbps to 12 Mbps. Auto baud rate detection supported.
	• Transmission media: Profibus bus line, type A or B specified in IEC 61158

P485 MODBUS TO PROFIBUS CONVERTER – USER GUIDE 1–3