ML2437A/38A OM/PM PN: 10585-00001 Rev. P 8-1
Chapter 8 — GPIB Operation
The majority of the GPIB commands have equivalents in the front panel menu settings. Note
that GPIB operation is not available when the power meter is running from the internal
battery (option 2000-996-R). The ML243xA Power Meter supports the IEEE 488.2–1992
GPIB standard in ML24XXA (native) mode (HP emulation commands are not GPIB 488.2
compliant). For further information about GPIB programming, refer to the IEEE 488.1/2
Standards documents.
8-1 Data I/O Formats
All ML24XXA (native) GPIB 488.2 commands that use parameters must have a space
between the command header and the first parameter, and all subsequent parameters must
be separated by a comma (,). Multiple commands may be sent on the same line, but must be
separated by a semicolon (;).
The format for ML243xA (native) GPIB commands is:
<command header><space><parameter 1>,<parameter n>,...
HP and ML4803 emulation commands on the other hand, do not have to have a space
between the command header and the parameter, or commas between the parameters.
The format for HP emulation commands is:
<command header><parameter 1><parameter n>...
The end of the command text must be terminated with either a line feed character (0Ah,
decimal 10) or a GPIB End of Transmission State (EOI), or both.
Data input and output formats and templates referred to throughout this chapter are
delimited with the less-than and greater-than characters (< >). Optional parameters and
suffix characters are delimited with brackets ([ ]). These characters are not part of the data
and are only used in this text to distinguish the data elements they represent.
All the commands which allow a level to be set as a value argument are floating point values
which can use the E-0x convention or a suffix multiplier. The GPIB standard [units]
convention (SEC for seconds, MS for milliseconds, etc.) IEEE codes and formats have been
implemented for the suffix units and multipliers. The suffix unit is always allowed but is not
required and is shown in brackets where appropriate.
The table below lists the numeric data suffix mnemonics for the ML243xA Power Meter.
These mnemonics are used when entering numeric data with GPIB commands (use of these
codes is optional).
To Next Page
Loading...
