User`s guide

Agilent 34401A Compatibility Mode
Your Agilent 34410A, 34411A, or L4411A multimeter provides a SCPI
command set that is enhanced, but highly backward-compatible with the
Agilent 34401A Multimeter. In fact, several commands have been added
specifically for backward compatibility. These include:
CALCulate:NULL:OFFSet
INPut:IMPedance:AUTO
[SENSe:]DETector:BANDwidth
[SENSe:]ZERO:AUTO
Nevertheless, due to the added features and enhanced performance of the
Agilent 34410A/11A/L4411A, there are some issues that may prevent your
34401A program from running identically using the 34410A/11A/L4411A in its
normal SCPI mode. These include different range selections, resolution
selections, and so forth. To best assure that you can run your 34401A program
on the 34410A/11A/L4411A, a 34401A maximum-compatibility mode is
provided. In this mode, the SCPI syntax is changed to follow that of the
34401A, as described in the Agilent 34401A User's Guide, rather than the
native 34410A, 34411A, or L4411A SCPI syntax. The compatibility mode can
be selected using the SYSTem:LANGuage command.
When the 34401A maximum-compatibility mode has been selected, most SCPI
commands should run syntactically the same as the SCPI commands described
in the Agilent 34401A User's Guide. In fact, the instrument even returns the
identification string for a 34401A when you execute *IDN?. However, there
are some differences, which are described below:
1. The 34410A/11A/L4411A hardware does not implement the DC:DC Ratio
feature. Therefore, the following commands are not implemented:
CONFigure:VOLTage:DC:RATio
MEASure:VOLTage:DC:RATio?
[SENSe:]FUNCtion "VOLTage:DC:RATio"
2. The 34410A/11A/L4411A hardware does not allow you to modify the
threshold setting for continuity measurements.
3. The 34410A/11A/L4411A hardware does not allow you to modify the