Agilent Technologies 75000 Series C, E1445A service manual Functional Verification

Command Coupling Many of the AFG SCPI commands are value-coupled. In order to prevent "Settings Conflict" errors, coupled commands must be sent contiguously by placing them in the same program line, or by suppressing 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, the 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 commands 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 working. No attempt is made to verify that the AFG is meeting specifications. 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

NOTE

For a quick functional check of the AFG, perform only the Self-Test.

An example program that performs all of the Functional Verification tests is included at the end of this section. An Agilent E1405/E1406 Command Module is required for this program.

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 logical 1.

18 Verification Tests Agilent E1445A Service Manual