Keithley 224 control class

TLM_messplatz/first.ipynb → TLM_tool/first.ipynb

@@ -131,7 +131,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -145,9 +145,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.1"
+   "version": "3.12.0"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 2
+ "nbformat_minor": 4
 }

TLM_tool/keithley224.py

+import pyvisa
+
+class Keithley224(object):
+    """
+    Control Class for the Keithley 224
+    """
+    def __init__(self,address="GPIB0::15::INSTR"):
+        """
+        Parameters
+        ----------
+        address: The GPIBO address is to be found at the I/O monitor 
+
+        Atrributes
+        ---------
+        rm: pyvisa resource manager to connect to instrument(s)
+        inst : an object to control the keithley 224
+
+        Help
+        ---
+        1) Set instrument timeout to NONE to prevent disconnections
+        2) Use control_ren for with the following codes for remote operation
+        
+        VI_GPIB_REN_DEASSERT         = 0
+        VI_GPIB_REN_ASSERT           = 1
+        VI_GPIB_REN_DEASSERT_GTL     = 2
+        VI_GPIB_REN_ASSERT_ADDRESS   = 3
+        VI_GPIB_REN_ASSERT_LLO       = 4
+        VI_GPIB_REN_ASSERT_ADDRESS_LLO = 5
+        VI_GPIB_REN_ADDRESS_GTL      = 6
+        
+        """
+        self.address = address
+        self.rm = pyvisa.ResourceManager()
+        self.inst = self.rm.open_resource(address)
+        self.inst.timeout = None
+        self.inst.control_ren(5) #local lockout blocks the tool 
+
+    def display(self,number):
+        """
+        Change the front display panel
+        
+        Parameters
+        ---------
+        number : 0-2
+    
+        Help
+        ----
+        D0 = Source
+        D1 = Voltage limit
+        D2 = Dwell time
+        """
+        self.inst.write(f"D{number}X")
+
+    
+    def set_operation(self,number):
+        """
+        Use this function for standby or operate mode
+        
+        Parameters
+        ----------
+        Number:0(Standby) or 1(Operate)
+        """
+        self.inst.write(f"F{number}X")
+    
+    def set_range(self,number):
+        """
+        Sets the tool range
+        
+        Parameters
+        ---------
+        number:0 and 5-9
+        
+        Ranges:
+        R0 = Auto Range (Force Most Significant number)
+        R5 = Full Scale: 20uA 2.0E-5
+        R6 = Full Scale: 200uA 2.0E-4
+        R7 = Full Scale: 2mA 2.0E-3
+        R8 = Full Scale: 20mA 2.0E-2
+        R9 = Full Scale : 101mA 1.01E-1
+        """
+        self.inst.write(f"R{number}X")
+
+    def set_current(self,value):
+        """
+        Sets the Current Source Output Value
+
+        Parameters:
+        value: float 
+        min -101mA
+        max = 101mA
+        """
+
+        sci_value = "{:.4E}".format(value) #according to tool manual for current
+        self.inst.write(f"I{sci_value}X")
+
+    def set_voltage_limit(self,value):
+        """
+        Sets the Voltage Limit(Compliance)
+
+        Parameters
+        ---------
+        value: float 
+        min: 1V
+        max : 105V
+        """
+        sci_value=  "{:.2E}".format(value) #manual format for voltage
+        self.inst.write(f"V{sci_value}X")
+
+    def set_time(self,value):
+        """
+        Sets the Dwell Time
+        
+        Parameters
+        ----------
+        value: float
+        limits: 50msec to 999msec (1msec steps)
+        """
+        sci_value = "{:.3E}".format(value) # manual format for dwell time
+        self.inst.write(f"W{sci_value}X")
+
+    def __del__(self):
+        """
+        Destructor: Disconnect Computer from Instrument
+        """
+        self.inst.control_ren(0) # Return to local Mode see codes above
+        self.inst.close()
+        
+
+
+        
+    
+    
+        
+     
+
+
+
+
+    
+        
+        
+        
+    
\ No newline at end of file

keitley244/keithley_first.ipynb

@@ -144,7 +144,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.18"
+   "version": "3.12.0"
   }
  },
  "nbformat": 4,