move scpi capable instrument to a separate class

1 files changed, 66 insertions, 0 deletions

diff --git a/scpi.py b/scpi.py
new file mode 100644
index 0000000..63b9e0a
--- /dev/null
+++ b/scpi.py
@@ -0,0 +1,66 @@
+"""
+provide basic class to operate Lock-in
+"""
+
+import pyvisa
+
+class SCPIinstr:
+    """ Basic class which support SCPI commands """
+    """     
+    Do not instantiate directly, use
+    rm = pyvisa.ResourceManager()
+    SCPIinstr(rm.open_resource('TCPIP::192.168.0.2::INSTR'))
+    """
+    def __init__(self, resource):
+        print(resource)
+        self.resource = resource
+        
+        # convenience pyvisa functions
+        self.write = self.resource.write
+        self.read = self.resource.read
+        self.query = self.resource.query
+        self.read_bytes = self.resource.read_bytes
+        self.read_binary_values = self.resource.read_binary_values
+        self.query_binary_values = self.resource.query_binary_values
+
+    @property
+    def idn(self):
+        return self.query("*IDN?")
+
+    def clear_status(self):
+        self.write("*CLS")
+
+    def set_event_status_enable(self):
+        self.write("*ESE")
+    
+    def query_event_status_enable(self):
+        self.query("*ESE?")
+
+    def query_event_status_register(self):
+        self.query("*ESR?")
+
+    def set_wait_until_finished(self):
+        self.query("*OPC")
+
+    def wait_until_finished(self):
+        self.query("*OPC?")
+
+    def reset(self):
+        self.write("*RST")
+    
+    def set_service_request_enable(self):
+        self.write("*SRE")
+
+    def query_service_request_enable(self):
+        self.query("*SRE?")
+
+    def query_status_byte(self):
+        self.query("*STB?")
+    
+    def self_test_result(self):
+        self.query("*TST?")
+    
+    def wait(self):
+        self.write("*WAI")
+
+