Data exchange module 750-654
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Structure of the in- and output data for LIGHTBUS (from firmware
WD)
Input
Content
Description
Word
High
Low
n
-
Statusbyte
Statusword
n+1
Input byte0
Input byte1
1. and 2. Input byte
n+2
-
Input byte4
5.Input byte
n+3
Input byte3
Input byte2
3. and 4. Input byte
Output
Content
Description
Word
High
Low
n
-
Statusbyte
Statusword
n+1
Output byte0
Output byte1
1. and 2. Output byte
n+2
-
Output byte4
5.Output byte
n+3
Output byte3
Output byte2
3. and 4. Output byte
Attention:
The control byte allows the changing of the registers of the module. It must always be 0
in order to avoid a change in the register. A wrong mapping can change the function of
the module!