
Fieldbus ECO-Coupler 750-343 • 41
Description
WAGO-I/O-SYSTEM 750
PROFIBUS
3.1.1 Description
The Fieldbus Coupler 750-343 maps the peripheral data of all I/O modules in
the WAGO-I/O-SYSTEM 750 on PROFIBUS DP.
In the initialization phase, the Fieldbus Coupler determines the physical
structure of the node and creates a process image with all inputs and outputs.
I/O modules with a bit width smaller than 8 can be combined to form one byte
in order to optimize the address space.
In addition the possibility exists to deactivate projected I/O modules. In this
manner the physical structure of the node can be individually designed with
regard to the peripheral signals, without undertaking any changes to an already
existing control application. This is done by correspondingly configuring the
modules with the aid of the software configuration tool (for instance, WAGO
NETCON, COM PROFIBUS, STEP7, ProfiMap, etc.)
The diagnostics feature is based on an identification and channel based
diagnostics in accordance with EN 50170 (PROFIBUS). Thus it is not
necessary to program modules for the evaluation of manufacturer specific
diagnostics information.
· Process data length
Max. 32 byte input process image
Max. 32 byte output process image
· Automatic recognition of transmission speed on the PROFIBUS from
9.6 kBd to 12 MBd
· All I/O modules from the WAGO-I/O-SYSTEM 750 are supported
· Process image can accept virtual placeholders for future expansion
· Configurable substitute value for each channel
· D-Sub 9 pole bus connection
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