Maple Systems MAPware-7000 - Manual (Page 235)

MAPware-7000 Programming Manual 235
1010-1040, Rev. 02
So far, nothing different; this alarm behaves the same as the prior alarm. Let’s now activate the
same alarm again, but instead of acknowledging, we will deactivate the alarm:
If this alarm is activated again, it is not placed into the Alarm Memory. Therefore, it does not
appear on screen. When using the ‘History With Acknowledge’ attribute, all new instances of
this alarm (other alarms are not affected) will not be displayed until the alarm is acknowledged
by the plant floor operator. Use this setting if you wish to conserve alarm memory space in the
HMC or if operator acknowledgement of the alarm is a requirement.
Finally, the alarm history is in non-volatile memory of the HMC so you can always see prior
alarms that have occurred even when power is removed from the HMC for a period of time.
The MAPware-7000 software allocates 65536 bytes for alarm messages and can retain up to
6000 historical alarm messages. If you wish to clear the alarm memory, simply use a Function
Key or Advanced Bit Button that is configured as a Key Specific Task – Clear Historical Alarm