Standard Commands for Programmable Instruments: Difference between revisions

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Revision as of 20:06, 21 November 2024 edit Sbmeirow (talk \| contribs) Extended confirmed users, Rollbackers 122,837 edits →488.2 commands: fix ← Previous edit		Latest revision as of 21:40, 17 July 2025 edit undo Sbmeirow (talk \| contribs) Extended confirmed users, Rollbackers 122,837 edits →488.2 commands: clarify
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Line 53: The only valid commands are the short form and long form of each command, all other subset variations are invalid. :For example, for <code>COMMunicate</code>, only <code>COMM</code> (short form) and <code>COMMUNICATE</code> (long form) are valid, but <code>COM</code>, <code>COMMUN</code>, <code>COMMUNIC</code> subsets are invalid, also appended letters are invalid too, such as <code>COMMUNICATED</code>. === Concatenating commands === Line 81: ===488.2 commands=== Since SCPI was defined as an additional layer on top of the IEEE 488.2 specification, a SCPI compliant device should recognize various 488.2 commands too.<ref name="SCPI-1999-spec"/> These commands might also be known unofficially as asterisk commands (or star commands), because they ~~all~~ start with the [[asterisk]] <code></code> character. According to section 4.1.1 of Volume 1 of SCPI, all SCPI devices ~~need to~~must implement the following 488.2 commands.<ref name="SCPI-1999-spec"/> In the real world some low-end ~~devices~~test equipment may only support a subset of these 488.2 commands, or may even accept the commands but not perform any operation. A user should check the official programmers manual for each device before assuming all of these 488.2 commands are supported. {{Div col\|colwidth=15em}} <code>CLS</code> <code>ESE</code> <code>ESE?</code> <code>ESR?</code> <code>IDN?</code> <code>OPC</code> <code>OPC?</code> <code>RST</code> <code>SRE</code> <code>SRE?</code> <code>STB?</code> <code>TST?</code> <code>WAI</code> {{Div col end}} According to section 4.1.2 of Volume 1 of SCPI, all other 488.2 commands not listed above are considered optional and not required by SCPI.<ref name="SCPI-1999-spec"/> {{Div col\|colwidth=15em}} <code>AAD</code> CLS * <code>CAL?</code> ESE * <code>DDT</code> ESE? * <code>DDT?</code> ESR? * <code>DLF</code> IDN? * <code>DMC</code> OPC * <code>EMC</code> OPC? * <code>EMC?</code> RST * <code>GMC?</code> SRE * <code>IST?</code> SRE? * <code>LMC?</code> STB? * <code>LRN?</code> TST? * <code>OPT?</code> WAI * <code>PCB</code> <code>PMC</code> <code>PRE</code> <code>PRE?</code> <code>PSC</code> <code>PSC?</code> <code>PUD</code> <code>PUD?</code> <code>RCL</code> <code>RDT</code> <code>RDT?</code> <code>SAV</code> <code>TRG</code> <code>RMC</code> <code>SDS</code> {{Div col end}} Line 112 ⟶ 146: ;Specifications [https://www.ivifoundation.org/downloads/SCPI/scpi-99.pdf SCPI-1999, Volume 1-4], 819 page PDF file, '''free''' download ''(doesn't include asterisk () commands, because they are specified in IEEE 488.2 & IEC 60488-2)'' [https://ieeexplore.ieee.org/document/8705775 IEEE 488.2-1992], 254 page PDF file, costs [https://www.techstreet.com/ieee/standards/ieee-488-2-1992?product_id=1888634 USD$5254] in ~~2024~~2025 ''(superseded by IEEE/IEC 60488-2-2004)'' * [https://ieeexplore.ieee.org/document/1352831 IEEE/IEC 60488-2-2004], 264 page PDF file, costs [https://www.techstreet.com/ieee/standards/ieee-iec-60488-2-2004?product_id=1779348 USD$~~373~~388] in ~~2024~~2025 ===Programming Manual Examples===