GPIB + C#编程
一个GPIB的操作类，采用Adlink的GPIB板卡，使用Adlink提供的C#类（只是调用DLL封装了一下）
类中包括对安捷伦数字万用表的基本操作，对固纬程控电源的基本操作和程控变阻箱的基本操作
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
namespace GPIB
{
class gpib
{
#region GPIB操作包括DMM,PWR,PRS0,PRS1
public short DMMaddr = 22, PWRaddr = 8, PRS0addr = 16, PRS1addr = 17;
private int ud = 0;
private int ibsta, iberr, ibcnt, ibcntl;
public bool write(int addr, string strWrite)
{
//Open and intialize an GPIB instrument
int dev = GPIB.ibdev(0, addr, 0, (int)GPIB.gpib_timeout.T1s, 1, 0);
GPIB.gpib_get_globals(out ibsta, out iberr, out ibcnt, out ibcntl);
if ((ibsta & (int)GPIB.ibsta_bits.ERR) != 0)
{
//MessageBox.Show("Error in initializing the GPIB instrument.");
return false;
}
//clear the specific GPIB instrument
GPIB.ibclr(dev);
GPIB.gpib_get_globals(out ibsta, out iberr, out ibcnt, out ibcntl);
if ((ibsta & (int)GPIB.ibsta_bits.ERR) != 0)
{
//MessageBox.Show("Error in clearing the GPIB device.");
return false;
}
//Write a string command to a GPIB instrument using the ibwrt() command
GPIB.ibwrt(dev, strWrite, strWrite.Length);
GPIB.gpib_get_globals(out ibsta, out iberr, out ibcnt, out ibcntl);
if ((ibsta & (int)GPIB.ibsta_bits.ERR) != 0)
{
//MessageBox.Show("Error in writing the string command to the GPIB instrument.");
return false;
}
//Offline the GPIB interface card
GPIB.ibonl(dev, 0);
GPIB.gpib_get_globals(out ibsta, out iberr, out ibcnt, out ibcntl);
if ((ibsta & (int)GPIB.ibsta_bits.ERR) != 0)
{
//MessageBox.Show("Error in offline the GPIB interface card.");
return false;
}
return true;
}
public bool read(int addr, string strWrite, string strRead)
{
StringBuilder str = new StringBuilder(100);
//Open and intialize an GPIB instrument
int dev = GPIB.ibdev(0, addr, 0, (int)GPIB.gpib_timeout.T1s, 1, 0);
GPIB.gpib_get_globals(out ibsta, out iberr, out ibcnt, out ibcntl);
if ((ibsta & (int)GPIB.ibsta_bits.ERR) != 0)
{
//MessageBox.Show("Error in initializing the GPIB instrument.");
return false;
}
//clear the specific GPIB instrument
GPIB.ibclr(dev);
GPIB.gpib_get_globals(out ibsta, out iberr, out ibcnt, out ibcntl);
if ((ibsta & (int)GPIB.ibsta_bits.ERR) != 0)
{
//MessageBox.Show("Error in clearing the GPIB device.");
return false;
}
//Write a string command to a GPIB instrument using the ibwrt() command
GPIB.ibwrt(dev, strWrite, strWrite.Length);
GPIB.gpib_get_globals(out ibsta, out iberr, out ibcnt, out ibcntl);
if ((ibsta & (int)GPIB.ibsta_bits.ERR) != 0)
{
//MessageBox.Show("Error in writing the string command to the GPIB instrument.");
return false;
}
//Read the response string from the GPIB instrument using the ibrd() command
GPIB.ibrd(dev, str, 100);
strRead = str.ToString();
GPIB.gpib_get_globals(out ibsta, out iberr, out ibcnt, out ibcntl);
if ((ibsta & (int)GPIB.ibsta_bits.ERR) != 0)
{
//MessageBox.Show("Error in reading the response string from the GPIB instrument.");
return false;
}
//Offline the GPIB interface card
GPIB.ibonl(dev, 0);
GPIB.gpib_get_globals(out ibsta, out iberr, out ibcnt, out ibcntl);
if ((ibsta & (int)GPIB.ibsta_bits.ERR) != 0)
{
//MessageBox.Show("Error in offline the GPIB interface card.");
return false;
}
return true;
}
#region 数字万用表操作集合
///
/// 数字万用表：读取电压
///
public bool DMM_ReadVoltage(double value)
{
try
{
string strRead = "";
if (write(DMMaddr, "CONF:VOLT:DC DEF") == false) return false;
if (read(DMMaddr, "READ?", strRead) == false) return false;
value = Convert.ToDouble(strRead);
return true;
}
catch
{
//MessageBox.Show("Voltage Read Fail!");
return false;
}
}
///
/// 数字万用表：读取电流
///
public bool DMM_ReadCurrent(double value)
{
try
{
string strRead = "";
if (write(DMMaddr, "CONF:CURR:DC DEF") == false) return false;
if (read(DMMaddr, "READ?", strRead) == false) return false;
value = Convert.ToDouble(strRead);
return true;
}
catch
{
//MessageBox.Show("Voltage Read Fail!");
return false;
}
}
///
/// 数字万用表：读取阻值
///
public bool DMM_ReadRes(double value)
{
try
{
string strRead = "";
if (write(DMMaddr, "CONF:RES DEF") == false) return false;
if (read(DMMaddr, "READ?", strRead) == false) return false;
value = Convert.ToDouble(strRead);
return true;
}
catch
{
//MessageBox.Show("Voltage Read Fail!");
return false;
}
}
///
/// 数字万用表：读取频率
///
public bool DMM_ReadFreq(double value)
{
try
{
string strRead = "";
if (write(DMMaddr, "CONF:FRES:DC DEF") == false) return false;
if (read(DMMaddr, "READ?", strRead) == false) return false;
value = Convert.ToDouble(strRead);
return true;
}
catch
{
//MessageBox.Show("Voltage Read Fail!");
return false;
}
}
///
/// 数字万用表：设定直流电压范围
///
public bool DMM_SetDCRange(double VRange, double VDelta)
{
try
{
return write(DMMaddr, "CONF:VOLT:DC " + VRange.ToString() + "," + VDelta.ToString());
}
catch
{
////MessageBox.Show("Voltage DC Range Setting Fail!");
return false;
}
}
///
/// 数字万用表：恢复设置
///
public bool DMM_Reset()
{
try
{
if (write(DMMaddr,"*RST") == false) return false;
return write(DMMaddr, "*CLS");
}
catch
{
////MessageBox.Show("DMM Reset Fail!");
return false;
}
}
///
/// 数字万用表：设定自动调零
///
public bool DMM_AutoZero(bool autoZero)
{
try
{
if (autoZero) return write(DMMaddr, "ZERO:AUTO ON");
else return write(DMMaddr, "ZERO:AUTO OFF");
}
catch
{
////MessageBox.Show("DMM Auto Zero Setting Fail!");
return false;
}
}
///
/// 数字万用表：设定触发延时
///
public bool DMM_TrigDelay(double trigDelay)
{
try
{
return write(DMMaddr, "TRIG:DEL " + trigDelay.ToString());
}
catch
{
////MessageBox.Show("DMM Auto Zero Setting Fail!");
return false;
}
}
///
/// 数字万用表：设定采样点数
///
public bool DMM_SampleCounts(uint sampleCount)
{
try
{
return write(DMMaddr, "SAMP:COUN " + sampleCount.ToString());
}
catch
{
////MessageBox.Show("DMM Sample Counts Setting Fail!");
return false;
}
}
#endregion
#region 程控电源操作集合
///
/// 设置电压值
///
public bool PWR_SetVoltage(double voltageSet)
{
try
{
return write(PWRaddr, ":CHAN1:VOLT " + voltageSet.ToString() + "/n");
}
catch
{
////MessageBox.Show("PWR Voltage Setting Fail");
return false;
}
}
///
/// 设置电流值
///
public bool PWR_SetCurrent(double currentSet)
{
try
{
return write(PWRaddr, ":CHAN1:CURR " + currentSet.ToString() + "/n");
}
catch
{
////MessageBox.Show("PWR Current Setting Fail");
return false;
}
}
///
/// 限流保护
///
public bool PWR_LimitCurrent(bool currentLimit)
{
try
{
return write(PWRaddr, ":CHAN1:PROT:CURR " + currentLimit.ToString() + "/n");
}
catch
{
////MessageBox.Show("PWR Current (Un)Limit Fail");
return false;
}
}
///
/// 限压保护
///
public bool PWR_LimitVoltage(bool voltageLimit)
{
try
{
return write(PWRaddr, ":CHAN1:PROT:VOLT " + voltageLimit.ToString() + "/n");
}
catch
{
////MessageBox.Show("PWR Voltage (Un)Limit Fail");
return false;
}
}
///
/// 启动输出
///
public bool PWR_Output(bool output)
{
try
{
if (output)
{
if(write(PWRaddr, "OUTP:PROT:CLE/n") == false) return false;
return write(PWRaddr, "OUTP:STAT 1/n");
}
else return write(PWRaddr, "OUTP:STAT 0/n");
}
catch
{
////MessageBox.Show("PWR (Un)Output Fail");
return false;
}
}
///
/// 获取输出状态
///
public bool PWR_GetOutput(bool output)
{
string strRead = "";
output = false;
try
{
if(read(PWRaddr, "OUTP:STAT?/n", strRead) == false) return false;
if (strRead == "1/n") output = true;
return true;
}
catch
{
//MessageBox.Show("PWR (Un)Output Fail");
return false;
}
}
///
/// 获取电压
///
public bool PWR_GetVoltage(double value)
{
string strRead = "";
try
{
if(read(PWRaddr, ":CHAN1:MEAS:VOLT?/n", strRead) == false) return false;
value = Convert.ToDouble(strRead);
return true;
}
catch
{
//MessageBox.Show("PWR Get Voltage Fail");
return false;
}
}
///
/// 获取电流
///
public bool PWR_GetCurrent(double value)
{
string strRead = "";
try
{
if (read(PWRaddr, ":CHAN1:MEAS:CURR?/n", strRead) == false) return false;
value = Convert.ToDouble(strRead);
return true;
}
catch
{
//MessageBox.Show("PWR Get Current Fail");
return false;
}
}
///
/// 恢复设置
///
public bool PWR_Reset()
{
try
{
return write(PWRaddr, "*RST/n");
}
catch
{
////MessageBox.Show("PWR Reset Fail");
return false;
}
}
///
/// 清除状态
///
public bool PWR_Clear()
{
try
{
return write(PWRaddr, "*CLS/n");
}
catch
{
////MessageBox.Show("PWR Reset Fail");
return false;
}
}
#endregion
#region 程控变阻箱操作集合
///
/// 设置电阻值0
///
public bool PRS0_SetResistance(ulong resSet)
{
try
{
string resString = "";
string resStringAdd = resSet.ToString();
if (resStringAdd.Length < 2) resString = "SOURce:DATA 200000000000";
else if (resStringAdd.Length > 8) resString = "SOURce:DATA 100000000000";
else
{
for (short i = 12; i > resStringAdd.Length; i--) resString += "0";
//resStringAdd.PadRight(12, '0');
resString += resStringAdd;
resString = "SOURce:DATA " + resString;
}
return (write(PRS0addr,resString));
}
catch
{
////MessageBox.Show("PRS0 Setting Fail");
return false;
}
}
///
/// 设置电阻值1
///
public bool PRS1_SetResistance(ulong resSet)
{
try
{
string resString = "";
string resStringAdd = resSet.ToString();
if (resStringAdd.Length < 2) resString = "SOURce:DATA 200000000000";
else if (resStringAdd.Length > 8) resString = "SOURce:DATA 100000000000";
else
{
for (short i = 12; i > resStringAdd.Length; i--) resString += "0";
//resStringAdd.PadRight(12, '0');
resString += resStringAdd;
resString = "SOURce:DATA " + resString;
}
return (write(PRS1addr, resString));
}
catch
{
////MessageBox.Show("PRS1 Setting Fail");
return false;
}
}
#endregion
#endregion
}
}转自:http://blog.csdn.net/wf_car/article/details/3997507