MODBUS/GPRS driver ID:81

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 communication interface support both direct and dialled-up connections. 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 : Ethernet.
Types of data : String, Fixed point, 8,16,32, BCD 16,32 Floating Point etc.
PLC types supported : All PLC’s complaying 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 : Ethernet speed
Throughput : Dependent on the Ethernet.
Max. number of channels : Up to 150 channels are currently supported.
Max. number of nodes : Up to 255 nodes.
PC hardware requirements : Standard PC ethernet interface board.
PC software requirements : Standard Microsoft windows TCP/IP protocol stack.