Omega Vehicle Security 1500 V, W#

Appendix A API Command Reference

NetScan User’s Manual A-49

V - Set User Terminator

TYPE System

EXECUTION Deferred

SYNTAX Vval Set the User Terminator value to any character whose numeric value (ASCII

value) val is in the range 0 to 255.

V? Query the present user terminator value.

DESCRIPTION

The Set User Terminator (V) command is used to set the User Terminator value t o any character whose numeric

value (ASCII value) is in the range 0 to 255. The User Terminator may be used by the Set Query Terminator (Q)

command to specify a user-defined terminator for any of the defined term inator types or as a reading separator

for the Read Buffered Data (R) command.

EXAMPLE

PRINT#1, “Q1,0,1,1,1X”‘ Set the reading separator flag ON

PRINT#1, “F0,0X”‘ Data format is engineering units, degrees C

PRINT#1, “V44X”‘ Set the User Terminator to be a comma (,)

PRINT#1,"C1-4,1X" ‘ Configure channels 1 - 4 as T/C type J

PRINT#1,"I00:00:01.0, 00:00:00.1”‘ Configure scan interval

PRINT#1,"Y0,1000,0X" ‘ Configure acquisition counts

PRINT#1,"T1,8,0,0X" ‘ Configure acquisition, start trigger is Trigger On (@)

command, stop trigger is Counts

PRINT#1,"@X" ‘ Trigger the acquisition

PRINT#1,"R1X”‘ Read a Scan

LINE INPUT #1, A$ ‘ Retrieve the Scan

PRINT A$ ‘ Screen shows +0020.30, +0023.80,

+0034.90, +0013.50

PRINT#1, “V58X”‘ Set the User Terminator to be a colon (:)

PRINT#1,"R1X ‘ Read a Scan

LINE INPUT #1, A$ ‘ Retrieve the Scan

PRINT A$ ‘ Screen shows +0020.30: +0023.80:

+0034.90: +0013.50

W# - Set Average Weight

TYPE System

EXECUTION Deferred

SYNTAX W

Specify the number of samples to average in the Normal mode, where wt is the average

weight. Valid options for wt are: 1, 2, 4, 8, 16, 32, 64, 128, and 256 (with 32

being the default value).

DESCRIPTION

Normal mode is used for line cycle integration for noise filtering, or for high-speed multiple c hannel use when

noise is not a problem. The selection for Average Weight (W#) determines how m any s amples to average for

each thermocouple or DC volts channel, or how many samples over which the root mean square (RMS) is

calculated for AC volts. As there are 32 samples per line cycle, sett ing wt to 32, 64, 128, or 256 samples will

automatically enable line cycle noise rejection.

Note: Due to hardware constraints, weights greater than 128 limit the number of channels which can be ac tive

in an acquisition to 122 channels, maximum.

Weight (wt) Maximum # of Channels

1,2,4,8,16,32, 64, 128 128

256 122

EXAMPLE

PRINT#1, “M#0X”‘ Select line cycle integration/high-speed multi-channel mode