GE VMIVME-7740 VME Single Board Computer
7. Check the Active Box. (Indicators must be marked Active to be monitored and reported.) Checkthe Hold box to retain the indicator's triggered level until manual reset.
4.3.3 Status indicator reset
To reset a single indicator state and date/time, press the Reset button at the far left of the indicator
line. To reset the state and date/time on all activate indicators shown on the displayed page, press
the Reset All button at the top left of the indicator list.
IMPORTANT NOTE: If an indicator is persistent, clearing the indicator may appear as if not
cleared (no color change), however the time and date will change.
4.4 Schedule tab
The Schedule Tab allows the user to define the stream, Step order, TOD (time-of-day) requests, and
Demand (Ad Hoc) requests. Additionally, the user defines which analysis to use when analyzing a
stream.
General functions include:
A live list of analyses in queue
Color-coded queued analyses identifying streams currently being analyzed, in purge, next to
purge and pending
Option to Start, Stop, Abort, or Pause the schedule
Schedule operation priorities:
1. Step Schedule Elements are the lowest priority and can be pre-empted by either Demand or
TOD requests.
2. AdHoc requests pre-empt Step Schedule elements, but not TOD requests.
3. TOD requests pre-empt both Demand and Step table Schedule requests.
IMPORTANT NOTE: No Schedule Element type can pre-empt its own type (e.g.: a TOD in the
Schedule Queue can’t be preempted by the next TOD Schedule Element added to the Schedule
Queue).
4.4.1 Maintenance mode icon
The Maintenance Mode icon sets the selected schedule's maintenance indicator. If desired, the
maintenance mode indicator may be placed in a scope at a level that invalidates reported data.
4.4.2 Power failure recovery icon
This software offers automatic, independent system control for planned or inadvertent power failure.
This allows the user to customize and control the process analyzer’s schedules, returning them to a
ready state after an outage. These are used to:
Protect the analytical hardware from introduction of process samples before the oven reaches
its operational temperature
Separate and configure power failure settings for all multiple oven configurations, including
simultaneous and parallel oven applications
Perform automatic synchronization of all analytical hardware to their operational state
Power Failure Recovery defines a schedule's recovery mode after an unexpected power outage. These
modes are defined as:
Continue: Restarts the schedule at the last analysis that was running when power was lost.
Restart: This mode can be configured to recover two ways.
• Delete the analyses in the queue and restart the schedule from the first active stream
defined on the Step subtab.
• Delete the analyses in queue, run a Clearing Analysis and then restart the schedule. The
Clearing Analysis is an optional analysis executed as the first analysis used to purge or
condition the system if the analyzer comes up in Restart mode. Each schedule has only
one Clearing Analysis defined for the schedule.
Abort Mode: Stops the schedule and deletes all analyses in the queue.

IMPORTANT NOTE: To ensure that a Clearing Analysis is not defined, select None in the dropdown
list (either the Analysis Name or the Stream Name).
Which mode the analyzer executes is determined by comparing the actual time the analyzer is ready
to the user set times: Time Continue and Time Restart.
Analyzer Ready is defined as the number of minutes from when the analyzer lost power until
the time the schedule is ready to run its first analysis for a given Schedule. This includes
analyzer boot time and time for oven(s) associated with the analysis to reach the low
temperature limit.
Continue Time is the user-defined time period, in minutes, in which the analyzer comes up in
Continue mode.
Restart Time is the user-defined time period, in minutes, in which the analyzer comes up in
Restart mode. Additionally, this mode allows assignment of a Clearing Analysis. The Clearing
Analysis is an optional analysis executed as the first analysis used to purge or condition the
system if the analyzer comes up in Restart mode. Each Schedule has only one Clearing
Analysis defined in that Schedule.
The Restart mode can be disabled by setting Time Restart to a value less than the value for Continue
Time. If the Restart mode is disabled, the Clearing Analysis is disabled.
If both values in the Power Failure Recovery Option are set to zero, the schedule restarts in an idle
mode. Upon recovery, the SBC compares the actual time to Analyzer Ready to the user-defined
values.
Modes are determined as follows:
If the Analysis Ready time is less than the user-defined Continue Time, then the analyzer
comes up in Continue mode.
If the Analysis Ready time is less than Time Restart and Time to Ready is greater than
Continue Time, then the analyzer comes up in Restart mode.
If the Analysis Ready time is greater than Time Restart and Time Ready is greater than
Continue Time, then the analyzer comes up in Abort mode.
If the Analysis Ready time is greater than Continue Time and Time Restart is less than
Continue Time, then the analyzer comes up in Abort mode.
If the Time Continue and Time Restart = 0, then the Schedule comes up in the STOPPED/IDLE
state.
Figure 4-11 illustrates the determination of the schedule recovery modes.
Figure 4-11: Power Recovery Options