Language Dictionary - 4Common CommandsCommon commands begin with an * and consist of three letters (command) IEEE 488.2 standard toperform some common interface functions. The electronic loads respond to the required commoncommands that control status reporting, synchronization, and internal operations. The electronic loadsalso respond to optional common commands that control triggers, power-on conditions, and storedoperating parameters.Common commands and queries are listed alphabetically. If a command has a corresponding query thatsimply returns the data or status specified by the command, then both command and query are includedunder the explanation for the command. If a query does not have a corresponding command or isfunctionally different from the command, then the query is listed separately. The description for eachcommon command or query specifies any status registers affected. Refer to chapter 3 under“Programming the Status Registers”, which explains how to read specific register bits and use theinformation that they return.*CLSThis command clears the following registers (see chapter 3 under “Programming the Status Registers” fordescriptions of all registers): Standard Event Status Operation Status Event Questionable Status Event Status Byte Error QueueCommand Syntax *CLSParameters None*ESEThis command programs the Standard Event Status Enable register bits. The programming determineswhich events of the Standard Event Status Event register (see *ESR?) are allowed to set the ESB (EventSummary Bit) of the Status Byte register. A "1" in the bit position enables the corresponding event. All ofthe enabled events of the Standard Event Status Event Register are logically ORed to cause the EventSummary Bit (ESB) of the Status Byte Register to be set. See chapter 3 under “Programming the StatusRegisters” for descriptions of the Standard Event Status registers.The query reads the Standard Event Status Enable register.Command Syntax *ESE Parameters 0 to 255Power-On Value see *PSCExamples *ESE 129Query Syntax *ESE?Returned Parameters Related Commands *ESR? *PSC *STB?99
