Agilent Technologies 4156C User Manual

2-28 Agilent 4155C/4156C VXIplug&play Driver User’s Guide, Edition 4
Driver Function Reference
hp4156b_readData
result *OPC? command execution result. Returned data. VI_TRUE
(Operation complete), or VI_FALSE (Operation is pending).
Example
ViSession vi;
ViStatus ret;
ViPBoolean result;
ret = hp4156b_opc_Q(vi,&result);
hp4156b_readData
This function reads and returns the source setup data or the data measured by the
hp4156b_startMeasure function.
Syntax ViStatus _VI_FUNC hp4156b_readData(ViSession vi, ViPInt32 eod,
ViPInt32 data_type, ViPReal64 value, ViPInt32 status, ViPInt32 channel);
Parameters vi Instrument handle returned from hp4156b_init( ).
eod End of data flag. Returned data. 1 (end of data) or 0 (not EOD).
data_type Data type of “value”. Returned data. 0, 1, 3, 8, 9, 11, 14, or 15.
0: Voltage setup data
1: Current setup data
3: Time setup data
8: Voltage measurement data
9: Current measurement data
11: Time measurement data
14: Sampling index data
15: Stress status data
value Measurement data or source setup data. Returned data.
status Measurement status or source status. Returned data. For the
status value, see “Status Code” on page 2-12.
channel Channel number of the unit for measurement or output.
Returned data. 1 to 6 (SMU1 to SMU6), 21 (VSU1), 22
(VSU2), 23 (VMU1), 24 (VMU2), 27 (PGU1), or 28 (PGU2).
hp4156b_readStatusByte_Q
This function returns the contents of the status byte register.

Agilent Technologies 4156C Specifications

General

Brand	Agilent Technologies
Model	4156C
Category	Measuring Instruments
Language	English

Summary

1 Installation

System Requirements

Specifies the necessary software and hardware environments for using the VXIplug&play driver.

Installing VXIplug&play Driver

Provides step-by-step instructions for installing the VXIplug&play driver for the instruments.

2 Driver Function Reference

4155/4156 Driver Functions

Details the functions available for controlling the Agilent 4155/4156 VXIplug&play driver.

E5250A Driver Functions

Details the functions available for controlling the Agilent E5250A VXIplug&play driver.

6 Programming Examples for VEE Users

Programming Basics

Registrating the Driver on Agilent VEE

Details the process of registering the VXIplug&play driver within the Agilent VEE environment.

Basic Objects to Control the Instrument