WAGO-I/O-SYSTEM 750
Device Description
15
750-652 Serial Interface RS-232 / RS-485
Manual
Version 1.4.0
The I/O module can be configured as a DMX sender with a baud rate of
250 kBits/s. This function is available with firmware version 03 or higher.
The wiring to the communication partner takes place in RS-232 mode via the
TxD, RxD connections, if necessary RTS/CTS and ground and in the RS-485/
RS-422 mode via the connections A, B, X, Y, and ground.
The shield connection is fed directly to the carrier rail and contact is made
automatically by snapping the module onto the rail.
The assignment of the connections is described in the “Connectors” section.
Connection examples are shown in section “Connecting Devices” > … >
“Connection Example(s)”.
Multi-color LEDs indicate the operating status and the trouble-free internal bus
communication as well as the status of the signal transmission.
The meaning of the LEDs is described in the “Display Elements” section.
The I/O module 750-652 (Serial Interface RS-232 / RS-485) receives the 24 V
voltage supply for the field level from an upstream I/O module or from the
fieldbus coupler/controller via blade-formed power jumper contacts. It then
provides these potentials to subsequent I/O modules via spring-formed power
jumper contacts.
The field voltage and the system voltage are electrically isolated from each other.
With consideration of the power jumper contacts, the individual modules can be
arranged in any combination when configuring the fieldbus node. An arrangement
in groups within the group of potentials is not necessary.