ABB Freelance 2000 Manual page 110

Section D
most important
message
highest priority message
newest message
oldest message
Gross Automation, 1725 South Johnson Road, New Berlin, WI 53146, www.ssacsales.com, 800-349-5827
D-36
The most important message is determined using the following algorithm:
Criterion A: Message status
Step 1 active, not acknowledged
Step 2 not active, not acknowledged
Step 3 active, acknowledged
All messages being equally important according to Criterion A are sorted
according to:
Criterion B: priority.
Step 1 System messages S1..S3
Step 2 Messages with priority 1
Step 3 Messages with priority 2
Step 4 Messages with priority 3
Step 5 Messages with priority 4
Step 6 Messages with priority 5
All messages being equally important according to Criteria A and B are
sorted according to
Criterion C: Acknowledgment strategy.
Step 1 Acknowledgment strategy 1
Step 2 Acknowledgment strategy 2
Step 3 Acknowledgment strategy 3
From all messages being equally important according to Criteria A, B, and
C the oldest message will be determined.
The message with the highest priority. If more than one message with the
same priority exists, the 'most important' will be determined.
The message with the most recent time stamp. If more than one message
with the same priority exists, the 'most important' will be determined.
The message with the time stamp furthest in the past. If more than one
message with the same priority exists, the 'most important' will be
determined.
Graphic Display