Manual

3-44 Operating Characteristics
3.12.2.1 Spooling Starts
When a transmission failure occurs, the first message sent to the spool is the event
message GemSpoolingActivated. The next message sent to the spool is the message
which caused the communications failure. The following table depicts the activity at
the GES-1993 when spooling starts.
Table 3-19 Spooling Activity
# Equipment
Send Sequence
Spool
Sequence
Description
1 S5F1 (Alarm
Report 1)
S6F11 (Spool
Activated Event
Report)
Equipment attempts to send an alarm report to
the Host, but experiences a transmit failure.
The GemSpoolingActivated event (CEID 23) is
sent to the spool. Variable
GEMSPOOLSTARTTIME (VID 57) is updated.
2 S5F1 (Alarm
Report 1)
The Alarm Report message is sent to the spool.
3 S6F11 (Event
Report 1)
S6F11 (Event
Report 1)
The Equipment generates an event report and
it is sent to the spool.
4 S5F1 (Alarm
Report 2)
S5F1 (Alarm
Report 2)
The Equipment generates an alarm report and
it is sent to the spool.
3.12.2.2 Equipment Spools Messages
While spooling messages, the Equipment will increment the
GEMSPOOLCOUNTACTUAL and GEMSPOOLCOUNTTOTAL status variables
for each message spooled. Messages which require an inquire/grant scenario are
spooled along with the inquire message as a single message. That is, if a multi-block
S6F11 (Event Report) message is being sent to the Host and spooling is active, the
S6F5 (inquire) as well as the S6F1 are sent to the spool and
GEMSPOOLCOUNTTOTAL and GEMSPOOLCOUNTACTUAL are incremented
by one.
The GES-1993 maintains two Equipment Constants which effect the spooling of
messages. The first is CONFIGSPOOL. If this is set to zero, then spooling will
never become active. If it is set to one, spooling will become active when a
transmission failure occurs.
The EC OVERWRITESPOOL determines if the Equipment should over-write the
oldest messages with new ones when the spool becomes full. If
OVERWRITESPOOL is TRUE, old messages will be over-written with new ones.
If FALSE, new messages will be discarded when the spool is full.