Functional description
5
gas-lab
Q1
Page 75
The following information is indicated for each individual message:
Name
Each message is identified via its parameterised name. You may
change to the indication of any other single message of the group via
the
Name
selection list.
Type
A single message can be derived from a
Message
, the monitoring of
an
Upper
or
Lower limit value
or
Gradient monitoring
.
Status
The status of a single message is characterised by several
specifications:
On
or
Off
indicates whether the message is pending. Here, a possibly
parameterised minimum pending time is taken into consideration:
Even though the status to be signalled is currently pending, the
associated single message will only be set if the status is pending
longer than the minimum pending time.
To be able to make out whether a single message would be pending
if no minimum pending time would have been assigned to it, the
display includes a seconds counter.
If the seconds counter starts counting backwards, the status to be
signalled has already been pending. A minimum pending time is
assigned to each single message. This is why the message itself is
only generated if its status is still pending after the minimum pending
time has elapsed. Therefore, the counter constantly shows how many
seconds of the minimum pending time are remaining. Only after the
counter has reached 0, the status indication of the message will
change from
Off
to
On
.
Seconds counter for
minimum pending time