Intelligent Roadway Information System
A portable DMS can have an associated GPS (global positioning system) receiver. This allows the sign to be tracked and automatically updated with the nearest roadway and direction.
To create a GPS device, select the DMS and open its
Properties form. On the
Location, there are controls for configuring the associated GPS. Once the
GPS is enabled, it must be associated with a controller. Its name will be the
same as the DMS, with
_gps appended. For NTCIP, the GPS should be
associated with the same controller as the DMS (using pin 2). For RedLion or
SierraGX, a new comm link and controller must be created to communicate with
The GPS location will be polled on the long poll period of the comm config.
Query GPS button can be used to manually poll the coördinates.