Emerson numatics g3 series - About PROFIBUS-DP; Overview; G3 PROFIBUS-DP Features; Cabling and Drop Line Lengths (as Defined by PROFIBUS Specification)

G3SeriesPROFIBUS‐DPTechnicalManual
Page 3
TDG3PTTM1-2EN 02/09
Subject to change without notice
www.numatics.com/g3
About PROFIBUS-DP
Overview
PROFIBUS-DP is a communication protocol used to network industrial devices to eliminate labor intensive
and expensive point to point wiring schemes. Siemens originally developed PROFIBUS DP, but it is now
supported by a multitude of manufacturers and the protocol standard governed by the PROFIBUS Trade
Organization (PTO).
The G3 Series PROFIBUS-DP product is designed to conform to the PROFIBUS standard EN50170, and is
certified by PROFIBUS Interface Center (PIC) according to the guidelines determined by the PROFIBUS
Trade Organization (PTO). The certification process ensures interoperability for all PROFIBUS-DP devices.
PROFIBUS-DP uses a 2-wire (plus shield) network and can have up to 126 nodes. The protocol can transfer a
maximum of 244 bytes of data per node cycle with nine selectable communication (baud) rates of 9.6 Kbps, 19.2
Kbps, 45.45 Kbps, 93.75 Kbps, 187.5 Kbps, 500 Kbps, 1.5 Mbps, 3 Mbps, 6 Mbps and 12 Mbps. Maximum
distance is depended upon baud rate and cable media type. Refer to the section below for details.
More information about PROFIBUS can be obtained from the PROFIBUS web site www.PROFIBUS.com
G3 PROFIBUS-DP Features
Features Description
Bus Topology
Linear bus, active bus termination on both ends. Stub lines
permitted only for <= 1.5Mbit/sec baud rates.
Baud Rates Supported
9.6 Kbps, 19.2 Kbps, 45.45 Kbps, 93.75 Kbps, 187.5 Kbps, 500 Kbps,
1.5Mbps, 3 Mbps, 6 Mbps and 12 Mbps
Duplicate address detection
Node address must match address in Master configuration software,
before node will enter the data exchange mode
Error Correction If error detected, sender is requested to repeat the message
Address Setting options
Via Software (with Profibus-DP Class 2 Master) ,with standard
Manual Configuration Module (MCM), or graphic display
Cabling and Drop Line Lengths (as defined by PROFIBUS specification)
Maximum Cable Length
Baud
Rate
9.6Kbps 19.2Kbps 93.75Kbps 187.5Kbps 500Kbps 1.5Mbps 12Mbps
Range/
Segment
1200M 1200M 1200M 1000M 400M 200M 100M