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TrafficXRoads: Guide
possible to use standart numerical operators, comparison operator and even if-else
conditions, functions, etc. If the result of evalution of the is not 0, the relay is turned ON
(triggered), if the result is 0 – the relay is turned OFF (untriggered). The evaluation is done
always on a value change of any of the widgets that are used as inputs in the expression.
You can check if the relay is working by simply entering 0 or 1 and saving it.
Based on the evaluation the relay is then turned ON or OFF.
SDLC data interface
FLOW also supports communication with the controller using the full-duplex
Synchronous Data Link Control (SDLC) protocol for short. This is realized using the SDLC
convertor. The currently supported convertor is the
. In is necessary to
register the convertor as an interface in the
Block->Interfaces
tab. It has an SDLC
connector and functions as a DR BIU on the CU side - this means it automatically responds
to Call data and Diagnostic requests from the CU. The FLOW unit can connect to its
Ethernet port. By sending UDP packets in a specific format, it can change the content of
the converter's responses on the SDLC bus.