Boonton 4540 Peak Power Meter User Manual - Manual (Page 140)

Boonton 4540 Series RF Power Meter
Remote Operation 5-6
5.6 SCPI Command Reference
This section contains a list of all SCPI remote commands accepted by the 4540 Series. The list is grouped by SCPI subsystem
or IEEE488.2 function, and includes a detailed description of each command.
5.6.1 IEEE 488.2 Commands
The purpose of IEEE488.2 commands is to provide management and data communication instructions for the system by
defining a set of ―*‖ commands (an asterisk followed by a three character code). These commands allow device control and
status monitoring, and are the basis for some of the commands of the SCPI STATus subsystem (see Section 5.5.17).
*CLS
Description: Clear Status command. This command resets the SCPI status registers (Questionable Status and
Operation Status), the error queue, the IEEE488.2 Status Byte (STB) and Standard Event Status
(ESR) registers, and the measurement.
Syntax: *CLS
Argument: None
Valid Modes: Any
*ESE
Description: Set or return the Standard Event Status Enable Register. The mask value in this register is used to
enable bits of the Standard Event Status Register that are or’ed together to form the ESB summary
bit in the instrument Status Byte. When a mask bit is set, and the corresponding ESR bit goes
true, an SRQ will be generated, provided the Event Status Summary bit (ESB, bit 5) is enabled in
the SRE register. No SRQ can be generated for that condition if the mask bit is cleared. To clear
the entire Standard Event Status Enable Register, send *ESE = 0. See the *ESR command for bit
assignments. This register is not cleared by *CLS, *RST or DCLR.
Syntax: *ESE <numeric_value>
Argument: <numeric_value> = 0 to 255
Valid Modes: Any