Adding new KXCI example

1. Adding new example for KXCI use with 4225-PMU
2. Update to the readme file to include information about this new addition.

Instrument_Examples/Model_4200A/KXCI_Examples/README.md

@@ -12,3 +12,6 @@ This example performs a family of curves test on a MOSFET, using the 4200A-SCS w
 
 * **[family_curves_LAN_keithleyLib.py](./family_curves_LAN_keithleyLib.py/)**  
 This example performs a family of curves test on a MOSFET, using the 4200A-SCS with three SMUs connected to a MOSFET via a LAN connection. It will output the ID-VD Curves of the MOSFET directly onto the KXCI interface. 
+
+* **[pmu_scope_annotated.py](./pmu_scope_annotated.py/)**  
+This program outputs five square wave pulses (2V, 50e-6s) from a 4225-PMU without the 4225-RPMs. This code uses ethernet to communicate to the 4200A.

Instrument_Examples/Model_4200A/KXCI_Examples/pmu_scope_annotated.py

@@ -0,0 +1,25 @@
+"""
+This program outputs five square wave pulses (2V, 50e-6s) from 
+a 4225-PMU without the 4225-RPMs. This code uses ethernet to 
+communicate to the 4200A.
+"""
+
+import time
+from instrcomms import Communications
+
+INST_RESOURCE_STR = "TCPIP0::134.63.74.187::1225::SOCKET" #establish ethernet connection with the 4200A - change address based your IP address
+pmuWave = Communications(INST_RESOURCE_STR)
+pmuWave.connect()
+pmuWave._instrument_object.write_termination = "\0"
+pmuWave._instrument_object.read_termination = "\0"
+
+
+pmuWave.query("PS1") #reset pmu, directed to channel 1
+pmuWave.query("PD1, 1e6") # sets output impedence to 10e6
+pmuWave.query("PT1, 100e-6, 50e-6, 1e-6, 1e-6") #timing parameters: "channel, pulse period, pulse width, rise time, fall time"
+pmuWave.query("PV1, 2, 0, 5, 0.01") #voltage source and current limit: "channel, pulse high, pulse low, pulse range, current limit"
+pmuWave.query("TS1, 0") #software trigger source
+pmuWave.query("PO1, 1, 0") #set output in normal mode
+pmuWave.query("PG1, 0, 5") #Trigger mode, 5 pulse burst
+pmuWave.query("PO1, 0, 0") #set output off 
+##send as a single wave on the MSO before executing the code