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5-16
PROGRAMMING AND INTERFACING
GPIB Command Summary
Below is a summary of the GPIB commands that may be used while programming the 1750. It is
recommended that the user have some familiarity with the IEEE-488 specification before continuing
with this section. Programming for the Model 1750 is performed by using Device Dependent Commands
from the buss to the instrument. These commands are a combination of a letter and a number. Upper
and lower case letters are permitted. In order to send a Device Dependent Command to the instrument,
the command string must be followed by a message delimiter, such as “X” and a terminator sequence.
The table below is a summary of individual commands.
Enable Auto Correct Feature
Not user Selectable. Auto Correction is always enabled. Per
latest firmware revision.
Recall Setup, “n” Where n=0 through 9
Set Delay Time in ms; n= 001 – 250
[Default=111]
Set Line Cycle Integration Frequency
Set 1750 to 60 Hz Integration
[Default=111]
Set 1750 to 50 Hz Integration
Group Execute Trigger [GET]
IBGET]
for National
Triggers the device to take a reading. The reading is not
returned to the bus.
IBCLEAR]
for National
Commands the device to clear all errors and reinitialize the
unit to factory default settings. See page 3-2.
Set high comparator limit value where n=00000-22999
Set low comparator limit value where n=00000-22998
Set nominal value in % comparator where n=00000-22999
Set high % limit in % comparator where nnnn=00.00 -
99.99
Set low % limit in % comparator where nnnn=00.00–99.99
Mask Undesired Serial Poll bits where n=0–63 mask value.
Display Resistance Mode
[Default=111]
Display % Comparator Mode
Perform Self test (Requires “x” then “E” to report results)
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