Version 3 Software Operation
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Each display wired to the switch interface must have a unique address. The switch
interface will broadcast a RUN or STOP command to all sign addresses on the network.
The switch interface
cannot pick individual displays to run separate messages.
i.e. The
operator cannot run MSG001 on display 1, MSG004 on display 2 if both displays have
both messages, etc. Closing the switch to run MSG001 will run MSG001 on all the displays
that have MSG001, regardless of the display’s address.
Up to 32 messages can be run simultaneously using one SI-32. However this number is
subject to the display’s memory capacity and the size of the messages. Refer to switch
modes for exact operation.
If two SI-32 units are chained together, potentially up to 60 messages could be run at the
display. However, several display types have limits on the number of running and stored
messages at the display. See table below for the number of messages for your display.
Sign Type
Stored
Messages
Running
Messages
DataTrac
60
32
Infonet
60
32
Galaxy (MDC)
32
32
Galaxy (M2)
60
60
Many different displays sizes or technologies may be used. A message (MSG001) need
not be the same message on every display. However, it must have the same name
(MSG001) and switch library for the switch to activate it.