General Information 1Keysight Models 6811C, 6812C, and 6813C Programming Guide 25External ReferencesSCPI referencesThe following documents will assist you with programming in SCPI:– Beginner's Guide to SCPI. Keysight part no. H2325-90001. Highlyrecommended for anyone who has not had previous experience programmingwith SCPI.– Tutorial Description of the General Purpose Interface Bus. Keysight part no.5952-0156. Highly recommended for those not familiar with the IEEE 488.1and 488.2 standards.To obtain a copy of the above documents, contact your local Keysight Sales andSupport Office.GPIB referencesThe most important GPIB documents are your controller programming manuals -Keysight BASIC, GPIB Command Library for MS DOS, etc. Refer to these for allnon-SCPI commands (for example: Local Lockout).The following are two formal documents concerning the GPIB interface:– ANSI/IEEE Std. 488.1-1987 IEEE Standard Digital Interface for ProgrammableInstrumentation. Defines the technical details of the GPIB interface. Whilemuch of the information is beyond the need of most programmers, it can serveto clarify terms used in this guide and in related documents.– ANSI/IEEE Std. 488.2-1987 IEEE Standard Codes, Formats, Protocols, andCommon Commands. Recommended as a reference only if you intend to dofairly sophisticated programming. Helpful for finding precise definitions ofcertain types of SCPI message formats, data types, or common commands.The above two documents are available from the IEEE (Institute of Electrical andElectronics Engineers), 345 East 47th Street, New York, NY 10017, USA.