Chapter 1 Introduction
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Chapter 1 Introduction
This user’s manual is to describe Profibus-DP (Decentralized Peripherals) Master I/F module (hereinafter
referred to as Pnet I/F module) among communication modules of XGT PLC system.
Profibus-DP is specified in IEC Fieldbus Standard IEC 1158.
In this communication, Token Ring is used to control the communication and to configure the network easily.
Pnet I/F module is a module to control the field bus with Twisted Shielded Pair Copper Cable applied.
XGT Pnet I/F module has the characteristics as follows;
▶ Conforms to the international standard of EN 50170
▶ Supports Auto Baud Rate Detect
▶ Supports Sync/Freeze mode
▶ Max. input data : 244 Bytes/Slave
▶ Max. output data: 244 Bytes/Slave
▶ Max. data size : 244 Bytes/Slave, 10 kbyte/Master
▶ Communication speed : 9.6k, 19.2k, 31.25k, 45.45k, 93.7k, 187.5k, 500k, 1.5M, 3M, 6M, 12M
Active Stations, Master Devices
Passive Stations (Slave Devices) are polled
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