How to find the Input argument function syntax for Agilent 34970A instrument

3 次查看（过去 30 天）

Damien DUDUYER 2012-11-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/52596-how-to-find-the-input-argument-function-syntax-for-agilent-34970a-instrument

I try to use the tmtool to read measurement on an Agilent 34970 instrument. I use the Agilent34970 IVI driver 1.3.7. I add import the IVI-COM driver and convert it as a .mdd driver with midedit. Then I created the IVI configuration with logical name.... I create the device object for my instrument.

Now I don't find the good syntax to make a temperature measurement. I try with function RTDmeasure, but it seems that I don't write the ionputs arguments properly:

Example:

groupObj = get(deviceObj, 'Measure');
groupObj = groupObj(1);
invoke(groupObj, 'RTDMeasure', 101, Agilent.Agilent34970.Interop.Agilent34970RTDTypeEnum.Agilent34970RTD4Wire, Agilent.Agilent34970.Interop.Agilent34970RTDAlphaEnum.Agilent34970RTDAlpha85, 0.1);

Response: An error occurred while executing the function. Undefined variable "Agilent" or class "Agilent.Agilent34970.Interop.Agilent34970RTDTypeEnum.Agilent34970RTD4Wire".

% Execute device object function(s).
groupObj = get(deviceObj, 'Measure');
groupObj = groupObj(1);
invoke(groupObj, 'RTDMeasure', 101, Agilent34970RTD4Wire, Agilent34970RTDAlpha85, 0.01);

Response: An error occurred while executing the function. Undefined function or variable 'Agilent34970RTD4Wire'.

The following C code works. It had been obtained with the Agilent Command Expert software using the same IVI-COM driver

private void Untitled() {
  Agilent.Agilent34970.Interop.IAgilent34970_2 v34970a_banc12 = new Agilent.Agilent34970.Interop.Agilent34970Class();
  v34970a_banc12.Initialize("ASRL1::INSTR", false, false, "");t34970.Interop.A
  double[] retval = v34970a_banc12.Measure.RTDMeasure("101", Agilent.Agilengilent34970RTDTypeEnum.Agilent34970RTD4Wire, Agilent.Agilent34970.Interop.Agilent34970RTDAlphaEnum.Agilent34970RTDAlpha85, 0.1);
  v34970a_banc12.Close();

The tmtool help on the function: Configure the specified channels for 2 or 4-wire RTD measurements and immediately sweep through the scan list once. Note that this command also redefines the scan list Expected: [VAL] = INVOKE(OBJ,'RTDMeasure',SCAN_LIST,NUMWIRES,ALPHA,RESOLUTION)

I would like to find an help on all functions of this instrument 34970 and for an other Agilent instrument 34980A (same problem of syntax)