84 Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
Chapter 1 FactoryTalk Alarms and Events Logix-based Instructions (ALMD, ALMA)
· Typically 2.2 KB per analog alarm with no associated tags
Analog Alarm Example Approximate Size
Analog alarm with no associated tags and this configuration:
· HH Alarm message: Level Alarm
· H Alarm Message: Level Alarm
· L Alarm Message: Level Alarm
· LL Alarm Message: Level Alarm
· Rate of Change Positive Message: Fill Too Fast
· Rate of Change Negative Message: Empty Too Fast
· Alarm Class: Tank Farm A
2228 bytes
Analog alarm with two associated tags and this configuration:
· HH Alarm message: Level Alarm
· H Alarm Message: Level Alarm
· L Alarm Message: Level Alarm
· LL Alarm Message: Level Alarm
· Rate of Change Positive Message: Fill Too Fast
· Rate of Change Negative Message: Empty Too Fast
· Alarm Class: Tank Farm A
· Associated Tag 1 = DINT data type
· Associated Tag 2 = DINT data type
2604 bytes
Analog alarm with two associated tags and this configuration:
· HH Alarm message: Level Alarm
· H Alarm Message: Level Alarm
· L Alarm Message: Level Alarm
· LL Alarm Message: Level Alarm
· Rate of Change Positive Message: Fill Too Fast
· Rate of Change Negative Message: Empty Too Fast
· Alarm Class: Tank Farm A
· Associated Tag 1 = DINT data type
· Associated Tag 2 = STRING data type
4536 bytes
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