This topic describes the preparation of the instruments used by the test software at a given test station. (Refer to Required Test Equipment to confirm that you have the proper test equipment.) The test software does not check instruments for proper operation on the GPIB bus before attempting to perform tests.
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When performing adjustments using a Keysight 82357A/B USB/GPIB interface converter and PSG-D units with serial prefix >= 4928, SCPI errors or a GPIB timeout may occur. If these errors occur with the USB/GPIB interface, repeat the adjustments using a GPIB card connection to the PSG-D. |
Protection against ESD (electrostatic discharge) is essential while connecting, inspecting, or cleaning connectors attached to a static-sensitive circuit (such as those found in test sets). Static electricity can build up in your body and can easily damage sensitive internal circuit elements when discharged. Static discharges too small to be felt can cause permanent damage. Devices such as calibration components and DUTs can also carry an electrostatic charge. To prevent damage to the test set, components and devices:
Always wear a grounded wrist strap having a 1 million Ohm resistor in series with it when handling components and devices or when making connections to the test set.
Always use a grounded antistatic mat in front of your test equipment.
Always wear a heel strap when working in an area with a conductive floor. If you are uncertain about the conductivity of your floor, wear a heel strap.
The typical GPIB address configuration for a test station is:
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Spectrum Analyzer |
18 |
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Power Meter |
13 |
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Frequency Counter |
3 |
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Source |
19 |
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Network Analyzer |
16 |
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DVM |
22 |
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Function Generator |
10 |
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Oscilloscope |
4 |
Follow the steps below to manually check for proper connection of the GPIB devices before performing tests on a newly connected test station.
Note the GPIB address of each instrument associated with the test station/test plan defined earlier.
Connect a power cord to each instrument, and then connect each instrument to the computer serving as the GPIB controller.
Power up all the instruments on the GPIB bus.
Check each GPIB instrument for proper communication over the bus and the required "detectable" options. Follow the process described in "Checking GPIB Bus Devices" below.
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When checking the basic operation of each instrument or when checking for detectable options on a given instrument, you may need to look up the actual command for retrieving the identification string before performing these steps. |
Start the Keysight Connection Expert from the task bar or access it through Start > All Programs > Keysight Connection Expert.
Check for all expected GPIB devices. Verify that all expected GPIB devices are shown in the left window. If a device is missing, correct the problem and re-scan for connected instruments.
Check for basic operation of each GPIB device:
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If an instrument does not support SCPI, refer to the user guide for the product to learn more about checking the basic operation of its GPIB. |
Select a GPIB device.
Select the Interactive I/O from the right window.
The command window should be pre-populated with the *IDN? query. You can also select from the Commands > drop-down menu, or simply type *IDN? in the command window.
Select Send & Read.
Verify that the expected model number is contained in the response text string.
Check for detectable options on a given device:
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This does not work with the power meter. |
Select a GPIB device to highlight it.
Select the Interactive I/O from the right window.
Type *OPT?
in the command window.
Select Send & Read.
