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R E M O T E I N T E R F A C E S
Syntax Overview
ATS-515, -525 & ATS-615 & -625 Interface & Applications Manual
4-3
Section B:
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Syntax
Syntax Overview
For both GPIB (IEEE-488.2) and Serial (RS-232C):
• All message strings to and from the
ATS-515, -525 & ATS-615 & -625
Systems
consist of
ASCII characters.
• Numerical arguments are always sent/received in decimal format as a string of ASCII
characters.
• Some numerical arguments consist of a series of binary flags. They are sent as a decimal
number equal to the sum of the binary weights of each flag bit that is a “one.”
• Commands with arguments must have a space between the command and the argument.
• Serial (RS-232C) program messages (strings) must be terminated with a line feed. GPIB
program messages (strings) may be terminated with a line feed, by setting the EOI line, or
both.
• In GPIB mode, response messages from the
ATS-515, -525 & ATS-615 & -625
System termi-
nate with a line feed character with the EOI line set. In Serial mode, response messages
are terminated with a carriage return followed by a line feed.
• Program message unit separators “;” (semicolons) are required to delimit multiple com-
mands or queries in a single program message (string).
• In serial mode, the ! (exclamation point) character acts as the device clear command. It is
sent as a single character (no terminator) and should never otherwise appear in a message.
• The System parses commands as explained in
Command Examples
Description
From Host to System
System
Returns
Read the current temperature.
TEMP?<LF>
25<LF>
Set the temperature setpoint to
25 °C, the “at temperature” window
to 3 °C, and the soak time to 15
seconds.
SETP 25;WNDW 3;SOAK 15<LF>
Read the setpoint and the current
temperature.
SETP?;TEMP?<LF>
25;24.9<LF>
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