Agilent Technologies 4294A Programming Manual page 128

Communication with External Equipment (Using the I/O Ports)
Using the I/O Ports
To read out data from each input port (C to E) to the controller, use the following
commands.
To use ports C, D, and E as input ports, use the following commands to set ports C and D as
input ports in advance.
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To select positive logic or negative logic for input/output signals of ports, use the following
commands. You can save this setting into an instrument setup file using the save function.
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•
NOTE
The above commands, used to change the positive logic/negative logic setting, are
available for the following ports.
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To make the setting so that OUTPUT1 and OUTPUT2 goes HIGH (or LOW) when a pulse
is inputted into INPUT1, use the following commands.
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To set OUTPUT1 and OUTPUT2 to HIGH (or LOW), use the following commands.
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To check that any pulses have been inputted to INPUT1, use the following command.
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128
GPIB command
"OUTPINPCIO?" on page 381
"OUTPINPDIO?" on page 382
"OUTPINPEIO?" on page 382
"CIN" on page 278
"DIN" on page 297
"NEGL" on page 362
"POSL" on page 403
Output ports A to H
Input ports C to D
PASS/FAIL signal
"OUT1ENV{H|L}" on page 367
"OUT2ENV{H|L}" on page 368
"OUT1{H|L}" on page 367
"OUT2{H|L}" on page 368
"INPT?" on page 319
Instrument BASIC command
"READIO(16,2)"
"READIO(16,3)"
"READIO(16,4)"
Description
Reads out 4-bit width data from port C.
Reads out 4-bit width data from port D.
Reads out 8-bit width data from port E.
Chapter 9