KLN Series 022014 A-1/(A-2 Blank)APPENDIX A - SCPI COMMON COMMAND/QUERY DEFINITIONSA.1 INTRODUCTIONThis appendix defines the SCPI common commands and queries used with the KLN power supply.Common commands and queries are preceded by an asterisk (*) and are defined and explained inparagraphs A.2 through A.5, arranged in alphabetical order. Table A-1 provides a quick reference ofall SCPI common commands and queries used in the Interface Card.A.2 *CLS — CLEAR STATUS COMMAND *CLSSyntax: *CLSDescription: Clears status data. Clears the following registers without affecting the corresponding Enable Regis-ters: Standard Event Status Register (ESR), Operation Status Event Register, Questionable StatusEvent Register, and Status Byte Register (STB). Also clears the Error Queue.A.3 *IDN? — IDENTIFICATION QUERY *IDN?Syntax: *IDN?Return value: Character stringDescription: Identifies the instrument. This query requests identification. The power supply returns a string whichcontains the manufacturer name, the model, the serial number and the firmware level. The characterstring contains the following fields: , , , where: = KEPCO, = KLN model number, = SSSSSSA.4 *RST — RESET COMMAND *RSTSyntax: *RSTDescription: Resets power supply to the power on default state. The power supply output set to power-ondefault state.After sending *RST, output voltage is set to 0, output current is set to 0, OVP is set to rated voltage+10% and OCP is set to rated current +10%. It is recommended that this command is always the firstcommand sent after remote digital control starts, to ensure that the output is set to zero and control ofoutput on/off is properly enabled.A.5 *TST? — SELF TEST QUERY *TST?Syntax: *TST? Returned value: 0 or 1Description: Power Supply test.This query causes the power supply to do a self test and provide the controllerwith pass/fail results. A 0 is returned if the unit passes the test. A 1 is returned to indicate the unit failedself test.TABLE A-1. IEEE 488.2 COMMAND/QUERY INDEXCOMMAND PAR. COMMAND PAR.*CLS A.2 *RST A.4*IDN? A.3 *TST? A.5
