WAGO-I/O-SYSTEM 750 XTR
Commissioning 65
750-652/040-000 Serial Interface RS-232/RS-485 XTR
Manual
Version 1.3.0
8.3.6
DMX Application Example
8.3.6.1 Operation with Deactivated Continuous Send
In this mode, the I/O module only transmits the data for a limited number of DMX
channels according to the set size of the process image (see table “Process data
in the DMX operating mode without continuous send”). Higher refresh rates are
then possible.
Table 46: Process Data in the DMX Operating Mode Without Transfer Optimization
Process
image
length
Input data
Output data
8 bytes S0 Status byte 0
C0 Control byte 0
S1 Status byte 1
C1 Control byte 1
D0 Data byte 0
*)
D0 Data byte 0 DMX start byte (always 0)
D1 Data byte 1
*)
D1 Data byte 1 (DMX channel 1)
D2 Data byte 2
*)
D2 Data byte 2 (DMX channel 2)
…
…
D5 Data byte 5
*)
D5 Data byte 5 (DMX channel 5)
24 bytes D6 Data byte 6
*)
D6 Data byte 6 (DMX channel 6)
…
…
D21 Data byte 21
*)
D21 Data byte 21 (DMX channel 21)
48 bytes D22 Data byte 22
*)
D22 Data byte 22 (DMX channel 22)
…
…
D45 Data byte 45
*)
D45 Data byte 45 (DMX channel 45)
*)
Not in use. In this mode, no data is received.
The transmission method is described in the chapter “Transmission of the
Character String 'Hello World!'”
8.3.6.2 Operation with Activated Continuous Send
In this mode, the output buffer filled with the DMX start byte (always 0) and then
with data for DMX channel 1 to 254.
Sending from up to 512 DMX channels is possible with firmware version 06 or
higher. The alternative start codes 23, 88 or 144 can also be used.
The transmission method is described in the chapter “Function Description > … >
“Continuous Transmission”.
Observe settings!
To ensure continuous transmission, the “Continuous Send” setting must be
activated!
