The Wago-I/O-System 750; System Description; Coupler/Controller; Setting Up A Fieldbus Node With The Wago-I/O-System - WAGO -I/O-SYSTEM 750 User's Installation And Configuration

4 • The WAGO-I/O-SYSTEM 750

System Description

2 The WAGO-I/O-SYSTEM 750

2.1 System Description
2.1.1 General
The WAGO-I/O-SYSTEM consists of various components which are capable
of providing modular and application specific fieldbus nodes for various field-
busses.
A fieldbus node (short: Node) consists in principle of a fieldbus coupler (short:
Coupler) or a programmable fielbus controller (short: Controller) at the front
end (1), a number of I/O modules (2) and an end module (3) which is placed at
the other end.
Fig. 2-1: Setting up a fieldbus node with the WAGO-I/O-SYSTEM
2.1.2

Coupler/Controller (1)

The Coupler/Controller forms the link between the fieldbus and the field devi-
ces with their I/O functions. All control functions required for the faultless
operation of the I/O functions are carried out by the Coupler/Controller. The
connection to different fieldbus systems is established by each of the corre-
sponding Coupler/Controller, e.g. for PROFIBUS, INTERBUS, CAN,
MODBUS etc. In this way a change of the fieldbus system is possible.
The programmable fieldbus controller 750-842 combines the ETHERNET
TCP/IP functionality of the fieldbus coupler 750-342 with the functionality of
a Programmable Logic Control (PLC). Programming of the application is done
with WAGO-I/O-PRO in accordance with IEC 61131-3, covering all 5 pro-
gramming languages. The programmer can access all fieldbus and I/O data.
g012900x
Modular I/O System
ETHERNET TCP/IP