Remote Commands
This section details all the commands available. Note that each command is completely executed
before the next command is started. When a command generates a response that response will
be sent immediately if in non-addressable mode or when addressed to talk if in addressable
mode. Sending any valid command clears XOFF.
The following nomenclature is used:
<string> Any valid string listed for the command (the <> are not required).
[...] Any item(s) enclosed in these brackets are optional parameters.
<rmt> <
RESPONSE MESSAGE TERMINATOR>, i.e. Carriage Return character followed
by New Line character (0DH 0AH).
<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 its use then rounded up to obtain the value for the
command. If the number is too large for the selected function then the value is
set to 99999 on the highest range for that function.
General Commands
∗ IDN?
Returns the instrument identification in the form:
<NAME>, <MODEL>, 0, <VERSION>
where <NAME> is the manufacturer’s name, <MODEL> defines the instrument type and
<VERSION> is the revision level of the installed software.
READ?
Returns the next reading from the main display immediately after the command has been parsed.
The syntax of the response is:
<ASCII data><rmt>
where <ASCII data> is a 18 character string divided into 10-character plus 8-character fields. The
first field is the measurement value and consists of the following:
Digit
1 space (for positive values) or a minus sign.
2 .... 7 a 5 digit number plus decimal point in the format of the range selected for the
measurement.
8 .... 10 the exponent in the form e00, e-3, e03, etc., i.e. engineering units.
An overload reading (i.e. >12000 counts) is returned as ‘OVLOAD’ in place of the 5 digits plus
point; a calculation overflow (relevant to some function results) is returned as ‘OVFLOW’. In both
cases a minus sign can also be shown to indicate negative overload and overflow respectively.
The second field is the unit indication and will be one of the following; the field starts with a space
and additional spaces are sent at the end of the field to always make it 8 characters long:
V DC V AC V AC+DC
A DC A AC A AC+DC
Hz Ohms F
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