Agilent Technologies B1500A User's Guide download pdf (Page 54)

2-38 Agilent B1500 VXIplug&play Driver User’s Guide, Edition 3

Driver Functions

agb1500_opc_Q

This function does the *OPC? common command.

Syntax ViStatus _VI_FUNC agb1500_opc_Q(ViSession vi, ViPBoolean result);

Parameters vi Instrument handle returned from agb1500_init( ).

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 = agb1500_opc_Q(vi,&result);

agb1500_readData

This function reads and returns the source setup data or the data measured by the

agb1500_startMeasure function.

Syntax ViStatus _VI_FUNC agb1500_readData(ViSession vi, ViPInt32 eod,

ViPInt32 data_type, ViPReal64 value, ViPInt32 status, ViPInt32 channel);

Parameters vi Instrument handle returned from agb1500_init( ).

eod End of data flag. 0 (not end of data) or 1 (end of data). Returned

data.

data_type Data type of the value. Returned data.

1: Current measurement data

2: Voltage measurement data

3: Current output data

4: Voltage output data

5: Time stamp data

6: Impedance (R-X) measurement data

7: Admittance (G-B) measurement data

8: Capacitance measurement data

9: Dissipation factor measurement data

10: Quality factor measurement data

11: Inductance measurement data

12: Phase measurement data (radian)

13: Phase measurement data (degree)

14: Frequency data

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Agilent Technologies B1500A User's Guide Page 54