Tettex MIDAS 2881, Operating Instructions Manual

Page: 89 / 164

Software 79
7.8.1 Characteristics of the interface
The settings can be seen in the tap sheet SETUP / Menu Options
Command Syntax
The command syntax corresponds to the IEEE 488.2 standard. The following list is an explanation of
the terms, special characters and rules of syntax.
Terms, Characters Explanation Remarks
<EOS> End character, sent as conclusion of a transmissions or
serves to recognise the end of a transmission Fix set to
“CR + LF”
Command header Specifies the command to be executed.
Argument Contains the value to be input; can be transferred in
various formats (see also the “Data Format” section).
<SPACE> Separates the command header from the argument.
Command Command header and argument together.
: Separates command headers from one another.
, Separates arguments from one another.
? Attached to the command header for interrogating an
argument
; Separates individual commands from one another.
Command sequence Several commands one after another.
' or " Marks the beginning and the end of a string argument.
'' or "" Immediate repetition of the ' or " character in a string
argument. Accepts the character in the string without the
argument being taken as closed.
The MIDAS can process command sequences, whereby only one query is allowed per sequence
which must be positioned at the end of the sequence.
You can transmit upper and lower case letters when transmitting command headers and arguments.
Data Format
All numerical input and outputs are in SI units (Volts, Amperes, Ohms, etc.). The following summary
shows the formats used:
Format Description Examples
<NR1> Integer numbers 1, -8
<NR2> Real numbers 1.4, -3.64