The HP33120a device.
Status:
The HP33120a device is now ready and released (version 1.1.12.18).
990325 JSN
The HP33120a device is part of the GPIBDevices project. See GPIBDevicesVersion for versioning. This documentation applies to version 1.1.12.18.
Contents:
Overview:
The HP33120a device is used to interface a HP 331210A Function / Arbitrary Waveform Generator controlled by GPIB. Most relevant functions have been implemented. This include RF frequency, RF level, Frequency- and Amplitude-Modulation, and Waveform shapes.
Device parameters:
For addressDefinition the device uses AddTypeId number 9 (One-dim address) which uses a0 to determine the parameter number.
parameter |
Suggested |
Parameter name |
Data Type |
Interpretation |
Comment |
0 |
freq |
Frequency [kHz or MHz depending on device configuration] |
Float |
Bipolar Floating. |
Deviation from the nominal frequency defined in the setup of the device. |
1 |
AMmodFreq |
AM Modulation Frequncy [kHz] |
Float |
Unipolar Float. (no 226) |
The AM modulation frequency. |
2 |
FMmodFreq |
FM Modulation Frequncy [kHz] |
Float |
Unipolar Float. (no 227) |
The FM modulation frequency. |
3 |
offset |
Offset [Volt] |
Float |
Bipolar floating (no 190) |
Offset in Volt |
4 |
reset |
Resets the device and the instrument |
(pulsed control bit) |
Bit, checkbox, push bottom (no 572). |
Writing a one to this parameter will reset the device, the GPIB connection, and the instrument. This should not be necessary very often, and should properly be a restricted parameter. |
5 |
error |
Error number |
Word |
Word. |
A zero indicated all is OK, and anything else that something is wrong. |
6 |
errStr |
Error String |
String |
String. |
Text string with error. |
7 |
RFLevel |
RF level [Volt or dBm depending on device configuration] |
Float |
Bipolar Float |
|
8 |
FMDevi |
Frequency Modulation Deviation [kHz] |
Float |
Unipolar Float (no 151) |
|
9 |
AMDepth |
Amplitude Modulation Depth [%] |
Float |
Unipolar Float (no 606) |
|
10 |
FMMod |
Frequency Modulation Control |
Control Bit |
Bit, checkbox (no 517). |
A high (true) means that the FM modulation is on and a low (false) means it is off. |
11 |
AMMode |
Amplitude Modulation Mode |
Control Word |
|
0 means off, 1 means Ext, 2 means Ext/Int. |
12 |
shape |
Waveform shape |
Control Word |
Word |
0: DC, 1: Sin, 2: Square, 3: Triangle, 4: Ramp, 5: Noise |
13 |
AMshape |
AM Waveform shape |
Control Word |
Word |
0: DC, 1: Sin, 2: Square, 3: Triangle, 4: Ramp, 5: Noise |
14 |
FMshape |
FM Waveform shape |
Control Word |
Word |
0: DC, 1: Sin, 2: Square, 3: Triangle, 4: Ramp, 5: Noise |
Device configuration:
The following parameters are setup by the ConsysManager and stored in the .config file at the front-end computer on which the device is loaded:
- GPIB address (default is 10)
- RF offset frequency (in MHz) ()
- RF freq. UNIT (kHz or MHz)
- Amplitude unit (Vpp, Vrms, dBm)
- Output Load (50 Ohm, High imdedance)
Description of setup:
This section is empty.
Last Modified 05 February 2020