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N6784A - current limit in current priority mode using AgilentN67xxLib

Question asked by dawid on Mar 26, 2014
Latest reply on Apr 3, 2014 by MattC
  • Comment • 2
Hi, 

I'm new here. I'm currently working on preparing C# application with N6700. For channel where I have N6784 module I'd like to set current limit in the current priority mode. Below I put part of my code. Setting the positive voltage and negative voltage looks that works fine, but I can't set the current limit. I must add also that the voltage prority mode works fine. 

If somebody know how to set the current limit in current priority mode I will appreciate to let me know? If you want me to upload the whole visual studio project please let me know too. 

Here is my code:

        //Globals
        Agilent.AgilentN67xx.Interop.AgilentN67xx driver = null;

        IAgilentN67xxProtection2 protectionPtr_ch2;
        IAgilentN67xxMeasurement measurementPtr_ch2;
        IAgilentN67xxOutput5 outputPtr_ch2;  

        public void Init()
        {
                //init
                driver.Initialize("GPIB0::7::INSTR";, true, true, "");

                outputPtr_ch2 = (IAgilentN67xxOutput5)driver.Outputs.get_Item(driver.Outputs.get_Name(2));
                protectionPtr_ch2 = driver.Protections.get_Item(driver.Protections.get_Name(2));
                measurementPtr_ch2 = driver.Measurements.get_Item(driver.Measurements.get_Name(2));
        }

        public void PSU2_SetCurrentPrio(double dCurrent, double dVoltPos, double dVoltNeg)
        {
                //Set Current Priority
                outputPtr_ch2.SourceRegulationMode = AgilentN67xxSourceRegulationEnum.AgilentN67xxSourceRegulationCurrent;
                outputPtr_ch2.CurrentLimit(dCurrent, dCurrent);  // <- I use this to set current limit but it looks that does't work ???
                outputPtr_ch2.NegComplicanceVoltage = dVoltNeg;
                outputPtr_ch2.PosComplianceVoltage = dVoltPos;
        }

        public void PSU2_SetVoltagePrio(double dVoltage, double dCurrPos, double dCurrNeg) // That one looks that works fine
        {
                //Set Voltage Priority
                outputPtr_ch2.SourceRegulationMode = AgilentN67xxSourceRegulationEnum.AgilentN67xxSourceRegulationVoltage;
                outputPtr_ch2.NegComplianceCurrent = dCurrNeg;
                outputPtr_ch2.PosComplianceCurrent = dCurrPos;

                outputPtr_ch2.VoltageLevel(dVoltage, dVoltage);
        }


Regards,
Dawid  
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