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2017 Page 160 5IN2413 B
MS report Urgent
events
MS 1 Polling State MS 2Polling State MS 3 Polling State
Do not call N/A N/A N/A
Call 1
st
Primary N/A N/A
Call 2
nd
N/A Primary N/A
Call 3
rd
N/A N/A Primary
Call All Primary Primary Primary
1
st
Backup 2
nd
Primary
If (MS 1 is OK)
Secondary else
(MS#1 Fails)
Backup
N/A
1
st
Backup 2
nd
3rd Primary
If (MS#1 is OK)
Secondary
else (MS#1 Fails)
Backup
If (MS#2 is OK)
Secondary
else (MS#2 Fails)
Backup
1
st
Backup 3
rd
Call
2
nd
Primary Primary
If (MS#1 is OK)
Secondary
else (MS#1 Fails)
Backup
2
nd
Backup 3
rd
Call 1
st
Primary Primary
If (MS#2 is OK)
Secondary
else (MS#2 Fails)
Backup
MS Polling example:
When selecting MS 1 (IP Only), MS 2 (IP only) and split report option 1
st
Backup 2
nd
(using the default primary, secondary and backup time
intervals), the report process will be as follows:
In a normal state:
Polling through the IP network using the IP module will occur every 30
seconds according to the primary time interval to MS 1 and every 3600
seconds (1 hour) according to the secondary time interval to MS 2.
When communication to MS 1 fails, polling occurs every 30 seconds
according to the backup interval to MS 2. When communication returns to
MS 1, polling reverts back to the secondary time interval and occurs every
3600 seconds (1 hour) to MS#2