Technical data

38 Function Description WAGO-I/O-SYSTEM 750
750-652 Serial Interface RS-232 / RS-485
Manual
Version 1.3.0
5.1.6 DMX Operating Mode
The DMX operating mode is also available with firmware version 03 or higher.
In this mode, the I/O module functions as a DMX sender and allows up to 31
nodes to be connected.
The transmission channel is based on RS-485 physics with a transmission rate of
250 kBaud, as well as 1 start and 2 stop bits. In this mode, no further settings are
possible.
The structure of the transmitted telegram corresponds to the DMX 512/1990 (DIN
96530-2) specification.
The I/O module can transmit up to 255 bytes of data in this mode. Every
transmission of a DMX telegram begins with the transmission of the DMX start
byte. DMX channels 1 to 254 can be operated.
The possible refresh rate of DMX data depends on the number of channels
operated. By limiting the maximum channel number to 5, 21 or 45 (at a set
process image size of the I/O module of 8, 24 or 48 bytes), refresh rates of up to
200, 125 or 80 Hz are possible (see chapter "DMX Application Example").
5.2 Data Exchange Operating Mode
The Data Exchange operating mode is also available with firmware version 03 or
higher.
In this mode, the I/O module allows cyclic data exchange with another 750-652
I/O module configured in the same operating mode. Process data between
different fieldbus nodes can also be exchanged when integrated in different
fieldbus systems.