Interface Description

IGSS32 offers a TCP/IP interface for the MODBUS/TCP type PLC equipment. A standard Ethernet interface board in the PC together with standard Windows TCP/IP protocol stacks enables IGSS32 to communicate with CPUs using the Open Modbus/tcp specification.

The IGSS32 system polls the PLC equipment cyclically according to one of four user-defined time intervals. The time intervals are configurable from 100 milliseconds to 999 seconds. The system automatically groups process data in data blocks – thus fully exploiting the the communication link in relation to the present configuration.

Technical Data

Electrical Interface : 10/100 Mbit Ethernet.
Types of data : String, Fixed point 8, 16, 32, BCD 16, 32, Floating Point etc.
PLC types supported : All PLC’s complying to the OPEN MODBUS/TCP SPECIFICATION with RTU encoding.
Addressing : Node (PLC), data type (Coils, Discrete Input, Word Inputs, and Holding Registers), offset , bit offset (a whole number of words is read or written)
Supported platforms : Windows Vista, Windows XP, Windows 2003 Server, Windows 2000
Max. telegram size : 250 bytes per Telegram.
Transmission speed : 10/100 Mbits.
Throughput : Up to 8 telegrammer per second (dependent on available bandwidth).
Max. number of channels : Up to 8 connections are currently supported.
PC hardware requirements : Standard PC ethernet interface board.
PC software requirements : Standard Microsoft windows TCP/IP protocol stack.