Firmware
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11.00 - DMS 8.0 EN - 10/2011
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8400 StateLine C | Reference manual
I/O terminals
User-defined terminal assignment
6.4.1
Source-destination principle
The I/O configuration of the input and output signals is carried out according to the
source/destination principle:
A connection always has a direction and therefore always has a source and a target.
The inputs signals of the technology application are logically linked to the outputs of
system blocks which represent the device input terminals.
The inputs of system blocks that represent the device output terminals are logically
linked to output signals of the technology application.
The following graphic illustrates the source/destination principle:
[6-5]
Source-destination principle
Note the following:
An equipment input terminal can be logically linked to several inputs of the application
block.
Every input of the application block can only be logically linked to one input signal.
An output of the application block can be logically linked to several device output
terminals.
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