8-28 Agilent 4155C/4156C User’s Guide Vol.1, Edition 11
Specifications
Functions
• Instrument BASIC
Instrument BASIC is a subset of HP BASIC.
Functions arithmetic operation, binary operation, string manipulation,
logical operation, array operation, program flow control,
event-initiated branching, program editing and debugging
support, mass storage operation, instrument control,
real-time clock, softkey operation, and graphics.
Typing aid 4145B ASP (Auto Sequence Program) like syntax softkeys
are available in Instrument BASIC. An ASP file cannot be
read by the 4155C/4156C.
Remote control Instrument BASIC is remote controllable from an external
computer via the GPIB interface.
IBASIC supplemental information:
Program (text) area 16 Kbyte.
Variable/stack area 500 Kbyte.
Common variable area 600 Kbyte. This size is decreased when hard copy or
disk operation is executed.
•Trigger
Input external trigger input starts a sweep or sampling
measurement or can be used as a trigger input for
continuing Instrument BASIC program.
Input level TTL level, negative or positive edge trigger
Output external trigger can be generated by the following events:
start of each sweep measurement step, start of each pulse
(SMU) output, while the stress source is forcing, and
Instrument BASIC trigger out command execution.
Output level TTL level, negative or positive logic
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