8.3.6.3.2 "Dmx Receive" Application Example - WAGO 750-652/040-000 Manual

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8.3.6.3.2 "DMX Receive" Application Example

This subsection describes 2 application examples. The application examples
always have a process image of 24 bytes.
Example 1
Setting:
A DMX channel with number 1 as the start channel and a process image size of
24 bytes is set.
Goal:
The I/O module should receive DMX channels 1 ... 21 of the DMX universe and
transmit to the associated fieldbus master. The DMX universe sent by a DMX
sender consists of 512 DMX channels (1 ... 512) and the DMX start code (DMX
channel 0).
Effect:
The number of DMX channels actually received (21 DMX channels) are in byte D0
of the input process image (DMX channels 1 ... 21 were received).
Data bytes D1 ... D21 receive the respective channel data.
Example 2
Setting:
A DMX channel with number 508 as the start channel and a process image size of
24 bytes is set.
Goal:
The I/O module should receive DMX channels 508 ... 512 of the DMX universe
and transmit to the associated fieldbus master. The DMX universe sent by a DMX
sender consists of 512 DMX channels (1 ... 512).
Effect:
The number of DMX channels actually received (5 DMX channels) are in byte D0
of the input process image (DMX channels 508 ... 512 were received).
Data bytes D1 ... D5 receive the respective channel data.
Data bytes D6 ... D21 are set to zero.
Manual
Version 1.3.0
750-652/040-000 Serial Interface RS-232/RS-485 XTR
WAGO-I/O-SYSTEM 750 XTR