6 •750-654, 750-654/000-001 [Data Exchange Module]
Description
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.3 Description
The data exchange module allows the exchange of data between different
fieldbus systems via multiplexing of a serial connection.
Two modules are a communication pair that is connected by means of two
twisted wire pairs. Each module is part of a fieldbus node.
The wiring to the communication partner is made by the connections TxD,
/TxD, RxD, /RxD and ground.
The screen connection is connected directly to the mounting rail.
The data exchange is done in full duplex operation, independent of the
fieldbus system used. The data of the output process image of the fieldbus
coupler/-controller is transmitted to the communication partner. This module
then transmits the data to the input process image of its fieldbus coupler/-
controller and vice versa.
Depending on the fieldbus coupler/-controller used, the data exchange module
allows for the exchange of 4 (5) bytes, one status byte and one control byte
between the fieldbus systems via multiplexing of a serial connection. The
delay which is caused by the multiplexor is ca. 5 ms with the module 750-654
and 2.5 ms with the module 750-654/000-001.
Three green LEDs signal readiness for operation and troublefree internal bus
communication as well as the condition of the signal transmission.
The interface guarantees high fail-safe characteristic by differential
transmission and electrically isolated signals.
Any configuration of the specialty modules is possible when designing the
fieldbus node. Grouping of module types is not necessary.
Attention
This module has no power contacts. For field supply to downstream I/O
modules, a supply module will be needed.
The data exchange module 750-654 and its variations can be used with all
couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy
types 750-320, -323, -324 and -327).
This description is valid for hardware and software version XXXX3A05.....
The version is specified in the manufacturing number, which is part of the
lateral marking of the module.
