Owner's manual

Table Of Contents
Equipment-to-Host Messages 3-39
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. Table 3-25 depicts the activity at the Equipment when spooling starts.
Table 3-25 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 52) 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 Equipment maintains two equipment constants which affect 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.