S&C Instruction Sheet 1043-550
73
Last Time Active
When the special event occurred last, since the special event counters were reset
First Time Active
When the special event occurred first, since the special event counters were reset
In addition to showing the Special Events table, these screens allow for clearing special
event counters and timestamps and show the time of last clearing. That functionality is
available in the lower portion of the Special Event Counters screens and is identical to
that on the Logging Setup screen.
Here is the list of all special events currently supported by the UIM. The number in paren-
thesis is the internal point code, that needs to be supplied in the appropriate DNP mapping
screen to make the point accessible to SCADA.
Event Description
Category
Explanation
Compact Flash Failure (768)
Logging
This event occurs when CF disk error
is detected while saving logs to CF
card. There may be many reasons for
this but the message should come up
very rarely, if ever. If this happens
persistently, replace the CF card to
ensure continued logging and notify
S&C.
Logging Overflow (769)
Logging
A large but not infinite number of
events can be logged per unit of time.
This event occurs when that limit is
reached or exceeded. When this event
occurs data may be lost. If you see
this often, please contact S&C.
CF Data Likely Lost on Err (770)
Logging
This event occurs when a compact
flash operation was interrupted
before completion. The file on which
this occurred was saved with a .ERR
extension and abandoned. Some
events may have been lost from CF
log. The primary reason for this condi-
tion is a loss of power while CF card
is active-- a highly improbable but
possible event. Another reason is that
the card was pulled out while data
was being written to it-- this is why
it is necessary to disable CF logging
either with the IntelliLINK screen, or
the Keypad, before removing the card.
Notify S&C if you see this more than a
few times.
Data Logging
