Fieldbus Coupler; Description - WAGO 750-341 Manual

3.1.1 Description

The fieldbus coupler 750-341 displays the peripheral data of all I/O modules
in the WAGO-I/O-SYSTEM 750 on ETHERNET.
When power is applied to the fieldbus coupler, it automatically detects all I/O
modules connected to the coupler and creates a local process image. This can
be a mixture of analog and digital modules. The process image is subdivided
into an input and an output data area.
The data of the analog modules is mapped first into the process image. The
modules are mapped in the order of their position after the coupler. The
digital modules are grouped after the analog modules, in the form of words
(16 bits per word). When the number of digital I/O's exceeds 16 bits, the
coupler automatically starts another word.
The user has access to all field bus and I/O data.
All sensor input signals are grouped in the coupler (slave) and transferred to
the higher ranking controls (master) via the fieldbus. Process data linking is
performed in the higher ranking controls. The controls put out the resulting
data to the actuators via the bus and the node.
The ETHERNET fieldbus coupler is suitable for data rates of 10 Mbit/s and
100 MBit/s.
To be able to send/receive process data via ETHERNET, the coupler supports
a series of network protocols. For the exchange of process data, the
MODBUS TCP (UDP)- protocol and the Ethernet/IP protocol are available.
However, the two communication protocols cannot be used together.
The protocol HTTP, BootP, DHCP, DNS, SNTP, FTP and SNMP are
provided for the management and diagnosis of the system.
The coupler has an internal server for web-based applications. By default, the
coupler's built-in HTML pages contain information on the configuration and
status of the fieldbus node, and can be read using a normal web browser. In
addition, a file system is implemented that allows you to store custom HTML
pages in the coupler using FTP download.
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP

Fieldbus Coupler 750-341

Description
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