Command Coupling Many of the AFG SCPI commands are value-coupled. In order to prevent
"Settings Conflict" errors, coupled com ma nds must be sent contiguously by
placing them in the same program line, or by suppressi ng the end- of - line
terminator. (For more information on command coupling and syntax, see
Chapter 1 of the Agilent E1445A User’s Manual). In HP BASIC, t h e
end-of-line terminator can be suppressed by linking the commands with a
semi-colon (;) and a colon (:), as illustrated below:
ROSC:SOUR INT1;
:TRIG:SOUR INT1
In the Example programs, these comm ands would appear as follows:
OUTPUT 70910;"ROSC:SOUR:INT1;";
OUTPUT 70910;":TRIG:SOUR:INT1"
Functional Verification The purpose of these tests is to verify that the AFG is functioning properly
and that all front panel inputs and outputs are w or king. No attempt is made
to verify that the AFG is meeting specificati ons. Functional Verification for
the AFG includes the following tests:
•Self-Test
•Ref In/Marker Out Test
•Start Arm In Test
•Gate In Test
•Output Relay Test
NOTE For a quick functional check of the AFG, perform only the Self-Test.
An example program that performs all of the Functional Verificat ion tests is
included at the end of this section. An Agilent E1405/E1406 Command
Module is required for this program.
NOTE Some of the tests use the "TRIG OUT" port of the Command Module. This
port uses negative logic, i.e., the high voltage is a logical 0 and the low
voltage is a logi cal 1.