26
Each query produces a specific
<RESPONSE MESSAGE>
which is listed along with the command in
the remote commands list.
<WHITE SPACE>
is ignored except in command identifiers. e.g. '*C LS' is not equivalent to '*CLS'.
<WHITE SPACE>
is defined as character codes 00H to 20H inclusive with the exception of the NL
character (0AH).
The high bit of all characters is ignored.
The commands are case insensitive.
Command List
This section lists all commands and queries implemented in this instrument.
Note that there are no dependent parameters, coupled parameters, overlapping commands,
expression program data elements or compound command program headers; each command is
completely executed before the next command is started. All commands are sequential and the
operation complete message is generated immediately after execution in all cases.
The following nomenclature is used:
<
RMT
>
<RESPONSE MESSAGE TERMINATOR>
<
NRF
>
A number in any format. e.g. 12, 12·00, 1·2 e1 and 120 e-1 are all accepted as the
number 12. Any number, when received, is converted to the required precision
consistent with the use then rounded to obtain the value of the command.
<
NR
1>
A number with no fractional part, i.e. an integer.
<
NR
2>
A number in fixed point format e.g. 11·52, 0·78 etc.
<
N
>
The number of the output (1 or 2) or associated status register to which the
command relates. ‘1’ is the Master (left-hand output) and ‘2’ is the Slave (right-hand
output).
<
CPD
>
<
CHARACTER PROGRAM DATA
>
<
CRD
>
<
CHARACTER RESPONSE DATA
>
The commands which begin with a
*
are implemented as specified by IEEE Std 488.2 as Common
commands. All will function when used on the other interfaces but some may be of little use.
Instrument Specific Commands
For commands specified as 'WITH VERIFY' the operation is completed when the parameter being
adjusted reaches the required value to within ±5% or ±10 counts, whichever is the greater. If the
value fails to settle within these limits within 5 seconds then the Verify Timeout bit (bit 3) is set in
the Standard Event Status Register and the operation is completed at the end of the timeout
period.
The Operation Complete bit (bit 0) in the Standard Event Status Register is only ever set by the
*OPC command. The *OPC (or the *OPC?) command can be used for device synchronisation due
to the sequential nature of remote operations.
V<
N
> <
NRF
>
Set output <
N
> to <
NRF
> Volts
V<
N
>V <
NRF
>
Set output <
N
> to <
NRF
> Volts with verify
OVP<
N
> <
NRF
>
Set output <
N
> over voltage protection trip point to <
NRF
> Volts
I<
N
> <
NRF
>
Set output <
N
> current limit to <
NRF
> Amps
OCP<
N
> <
NRF
>
Set output <
N
> over current protection trip point to <
NRF
> Amps
V<
N
>?
Returns the set voltage of output <
N
>
The response is V <
N
> <
NR
2><
RMT
> where <
NR
2> is in Volts
