AMETEK Lx Series II Programming Manual - Manual (Page 236)

Programming Manual - Rev S Lx \ Ls Series II
232
This appendix summarizes difference between the old iL Series and HP6834B AC power sources
and the Lx Series with respect to bus programming. The Ls Series is not recommended as a
replacement for iL/HP6834B power sources.
The iL Series AC source products used an Agilent designed DSP controller board. This controller
is identical to the one used in the Agilent 6834B products. Both product lines have been
discontinued.
The Lx Series uses a newer AMETEK Programmable Power designed DSP controller. Every
effort was made to maintain backward compatibility with the iL/HP series over the bus. However,
some inherent hardware differences between the two controller designs make it impossible to
maintain 100% bus compatability. The known differences are outline here for reference.
AMETEK Programmable Power strives to provide as comprehensive a level of information on this
issue as possible. However, other incompatibilities may exist that have not been uncovered. For
technical support or to report compatibility issues, contact
[email protected] .
Device Identification (*IDN? response)
The *IDN? response will be similar in structure but different in content. The following *IDN?
responses apply to each model series.
Model *IDN? Response Comment
4500iL CALIFORNIA INSTRUMENTS,4500IL,0,A.00.04
6834B HP,6834B,0,A.00.04
4500Lx “California Instruments,4500Lx,54321,Rev1.13” Note double quotes
If existing test programs or drivers have to be used without modification, it is possible to change
the Lx Series IDN model number response by using the following command.
Command Comment
SYST:OEM “HP” „ Changes Manufacturer
SYST:MODEL “4500iL” „ Changes model number
This will change the model number to the string specified between quotation marks. Note that this
will make it more difficult to tell the 4500Lx from an actual 4500iL over the bus so this approach
should be avoided if possible.
Calibration Subsystem
The Lx controller hardware is functionally equivalent to the iL controller but uses a more advanced
calibration mechanism. This makes it impossible to support to iL‟s SCPI calibration subsystem.
Those calibration commands that exist on both units are listed in the table below.
iL / HP6834B Lx
Equivalent Comment
CALibrate :CURRent :AC N/A Error –113, Undefined Error.
:MEAS N/A Error –113, Undefined Error.
:DATA N/A Error –113, Undefined Error.
:IMPedance N/A Error –113, Undefined Error.
:LEVel N/A Error –113, Undefined Error.
:PASSword same Both units use same syntax but different
impact:
Lx password is always the high voltage
range limit value.