National Instruments Welding System 321645c-01 Manual De Usuario
Chapter 2
Function Reference — GPCTR_Change_Parameter
NI-DAQ FRM for PC Compatibles
2-198
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National Instruments Corporation
GPCTR_Change_Parameter
Format
status = GPCTR_Change_Parameter (deviceNumber, gpctrNum, paramID, paramValue)
Purpose
Selects a specific parameter setting for the general-purpose counter (E Series, 6602, and DSA
devices only).
devices only).
Parameters
Input
Parameter Discussion
Legal ranges for gpctrNum, paramID, and paramValue are given in terms of constants
defined in a header file. The header file you should use depends on the language you are
using:
defined in a header file. The header file you should use depends on the language you are
using:
•
C programmers—
NIDAQCNS.H
(
DATAACQ.H
for LabWindows/CVI)
•
BASIC programmers—
NIDAQCNS.INC
(Visual Basic for Windows programmers should
refer to the
section in Chapter 1,
, for more information.)
•
Pascal programmers—
NIDAQCNS.PAS
gpctrNum indicates which counter to program. Legal values for this parameter are shown in
Table 2-20.
Table 2-20.
Name
Type
Description
deviceNumber
i16
assigned by configuration utility
gpctrNum
u32
number of the counter to use
paramID
u32
identification of the parameter to change.
paramValue
u32
new value for the parameter specified by
paramID
paramID