Table 7-4 Storage Start/Stop Controls - Honeywell VPR100 User Manual

Starting and stopping storage
Data Storage can be started and stopped three ways. At the highest level, the ENABLE STORAGE menu
item enables or disables all data storage. At the next highest level, EXTERNAL ENABLE enables or
disables storage for each file type (Trends #1-3, Alarms, Events, Diagnostics, Unit Data). At the lowest
level, storage for each file type is started and stopped with one of two controls: a menu item BATCH
STATE or a discrete parameter BATCH CONTROL.
Table 7-4 describes each method of starting and stopping storage.
Prompt
ENABLE Acts as a master enable/disable switch for all data storage. Select this item from the
STORAGE DATA STORAGE menu. Set to ENABLE to allow storage of the current schedule. If this
is set to DISABLE, online data storage cannot take place, even if storage for
individual files is enabled with EXTERNAL ENABLE.
EXTERNAL Acts as a enable (high)/disable (low) switch for each storage file type (trends, alarms,
ENABLE events, diagnostics, unit data). Any storage file whose external enable is configured with a
discrete will start and stop according to the state of that discrete. This works
independently of batch storage.
BATCH Acts as a start/stop switch for each storage file type. The ENABLE STORAGE and
STATE EXTERNAL ENABLE both must be enabled for BATCH STATE to function.
Accessed under DATA STORAGE menu. If batch storage mode is configured for any
storage file and if BATCH CONTROL has not been configured with a discrete, then you
can manually start/stop the batches using this selection. The instrument will automatically
assign a number internally to identify the batch for storage. For example, data stored
between the first start and stop is marked as Batch #1. When the next batch starts, the
instrument will increment the batch number. These numbers identify the batches for later
retrieval.
BATCH Accessed under SET UP NEW SCHEDULES. If this item is configured with a discrete, it
CONTROL will start and stop storage for all storage files configured with batch storage mode. The
ENABLE STORAGE and EXTERNAL ENABLE both must be enabled for BATCH
CONTROL to function. The instrument will automatically assign a number internally to
identify the batch for storage. For example, data stored between the first start and stop is
marked as Batch #1. When the next batch starts, the instrument will increment the batch
number. These numbers identify the batches for later retrieval.
BATCH Accessed under DATA STORAGE. Shows the number (1-255) of the active batch. The
NUMBER batch number is assigned automatically by the instrument when the batch is started by
either method (BATCH CONTROL or BATCH STATE).
12/00

Table 7-4 Storage Start/Stop Controls

Comments
VPR &VRX – User Manual
Online Operation Using Menus
237