EVS Synapse U4D100, Installation And Operation Manual, Page: 22 / 28

Tags
The tag is also defined in the card. The tag has a fixed meaning. When controlling or monitoring software
has to make decisions based on events, it is easier to use the tag instead of interpreting a string. The
first implementation is the tag-controlled switch in the GPI16.
In cases where the event marks a change to an error status (e.g. 1 for Loss of Input), the complement is
marked by the tag increased by 128 (80hex), (e.g. 129 (81hex) for Return of Input).
The tags defined for the U4D100 card are:
Event Menu Item Tag Description
Announcements 01
hex
=Announcements
on
81
hex
=Announcements
off
Announcement of report and
control values
Ref-Status 02
hex
=REF_LOSS 82
hex
=REF_RETURN Reference lost or returned
Priority
The priority is a user-defined value. The higher the priority of the alarm, the higher this value will be.
Setting the priority to Zero disables the announcement of this alarm. Alarms with priorities equal to or
higher than the Error Threshold setting of the RRC will cause the error LED on the Synapse rack front
panel to light up.
Card Address
Together with the message string or the tag, the slot number or address of the card is relevant to be
able to assign the event to a certain card.
14 | November 2021 | Issue 1.00.B