Lake Shore Model 234/234D User’s ManualRemote Operation 4-54.2 SERIAL INTERFACE COMMAND SUMMARYThis Paragraph summarizes Model 234 Serial Interface Commands.Command FunctionQIDN? Identification QueryQRST Reset CommandC Program Curve BreakpointC? Curve Breakpoint QueryCAL Calibrate Resistance Measurement InputDA0 Set Current Output To ZeroDA4 Set Current Output To 4 mADA20 Set Current Output To 20 mAERASE! Erase CurveLOGR? Logarithm of Sensor Resistance QueryOHMS? Sensor Resistance QueryRANGE? Output Temperature Range QuerySCALE? Resistance Measurement Scale QuerySID Program Curve IdentificationSID? Curve Identification QueryTAG Program Tag IdentificationTAG? Tag Identification QueryTEMP? Temperature QueryUNITS? Output Units QueryAn explanation of the command structure is shown below.