Omega Vehicle Security OMB-NETSCAN 1500 User Manual download pdf (Page 168)

API Command Reference

Appendix A

A-28 NetScan User’s Manual

- Set Scan Interval

TYPE

Acquisition

EXECUTION

Deferred

SYNTAX

Inorm,

acq

Set the two configurable scan intervals of the unit where

norm

and

acq

are

the normal and acquisition scan intervals which have the form:

hh:mm:ss.t

where

is hours,

is minutes,

is seconds, and

tenths of a second.

Query scan interval selection.

DESCRIPTION

The Set Scan Interval (

) command is used to set one of the following two distinct scan intervals:

The first is the “normal” scan interval, used when the unit is collecting scans before the start trigger has occurred

or after stop trigger has occurred. Scans in these two regions are called pre-trigger scans and post-stop scans,

respectively.

The second is the “acquisition” scan interval, used when the unit is acquiring scans after the start trigger has

occurred but before the stop event has occurred. Scans in this region are referred to as post-trigger scans.

The

norm

and

acq

arguments represent the normal and acquisition scan intervals, respectively.

The scan interval can be set to run as fast as the current unit configuration will allow. This is referred to as “fast

mode”. Each of the two scan intervals can be configured as such by specifying

00:00:00.0

as the argument

for the desired scan interval.

When the

command is interrogated by the unit, the unit will determine, by examining its current channel

configuration, if it is capable of running at the desired interval. If the unit determines that it is not capable of

running at the desired interval, it will automatically enable fast mode for the interval(s) in question. It will also

issue a Conflict Error to inform you that it is not running at the user-specified interval.

The scan interval can be programmed from a 24-hour period to a 0.1-second period in increments of 0.1 second.

If a scan interval of zero is programmed, the interval will default to fast mode. Likewise, if a scan interval is

programmed less than the unit is capable of running at, the interval will default to fast mode.

EXAMPLE

PRINT#1, “I01:00:00.0, 00:00:00.0X

“

‘ Set normal scan interval to once every hour and

acquisition interval to fast mode

PRINT#1, “I?X”

‘ Query the current scan intervals

LINE INPUT #1, I$

PRINT I$

‘ Screen shows

I01:00:00.0,00:00:00.0

1 2 ... 163 164 165 166 167 168 169 170 171 172 173 ... 255 256

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Omega Vehicle Security OMB-NETSCAN 1500 User Manual Page 168

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