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Siemens S7 HMI Adapter (S7 protocol) ID:28


Interface Description

The IGSS32 HMI Adapter communication interface offers connection to SIMATIC S7/300 and S7/400 PLCs using a SIMATIC S7 HMI Adapter and a standard serial RS232 port. The SIMATIC S7 HMI Adapter connects directly to the CPU port on the PLC using MPI protocol. On the PC side the HMI Adapter connects to a standard serial RS232 port.

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:RS-232C (PC-side), MPI Network (PLC-side)
Protocol:S7-Protocol
Types of data:String, Fixed point 8, 16, 32, BCD 16, 32, IEEE float etc
PLC types supported:Simatic S7/300 series and Simatic S7/400 series.
Addressing:Node (PLC), data type (Data Blocks, Input, Output, Flags, Timer and Counter), Type index, bit offset.
Supported platforms:Windows Vista, Windows XP, Windows 2003 Server, Windows 2000
Max. telegram size:256 bytes pr. Telegram
Transmission speed:9600 baud.
Communication mode:Half duplex 3964R link layer
Throughput:Up til 2-4 telegrams pr. Channel pr. Second.
Max. number of channels:Up to 4 COM ports are supported concurrently.
Max. number of nodes:4 pr. COM port if HMI adapter V5.1 / 1 pr. COM port if HMI adapter older than V5.1
PC hardware requirements:1-4 standard serial ports (COM ports). SIMATIC S7 HMI Adapter V5.1 (6ES7 972 0CA11-0XA0) or SSW7-HMI from Systeme Helmholz GmbH (700-751-9VK11)
PC software requirements:None