forked from zietzm/Helmholtz_Test_Bench
Martin Zietz
69 lines
2.1 KiB
Markdown
69 lines
2.1 KiB
Markdown
# Python-PS2000B
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Python library to work with Elektro-Automatik PS 2000 B power supplies via USB.
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## Compatibility
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Tested with:
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+ Python 2.7
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+ Python 3.5, 3.6
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Tested on:
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+ Windows 7 x64
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+ Windows 10 x64 Version 1607 (OS Build 14393.2035)
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+ Ubuntu 16.04.1 LTS
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+ Ubuntu 20.04.1 LTS
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## Features of Python-PS2000B
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### Supported
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- read static device information (manufacturer, serial, device type ...)
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- read dynamic device information (current, voltage)
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- read/write remote control
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- read/write output control
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### Still todo
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- set voltage and current
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- wrap error results in own telegram
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## Prerequisites
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### Python
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The following third-party Python libraries are needed:
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* `pyserial` - serial communication library for Python, see https://pypi.python.org/pypi/pyserial
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### Windows
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On Windows the USB driver (fetch it from http://www.elektroautomatik.de/files/eautomatik/treiber/usb/ea_device_driver.rar) must be installed. Afterwards you can find the serial port `COMxx` in the *device manager*.
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### Linux
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On Linux the device is detected as `/dev/ttyACMx` (abstract control model, see https://www.rfc1149.net/blog/2013/03/05/what-is-the-difference-between-devttyusbx-and-devttyacmx/). Use `dmesg` after connecting the device to find out `x`.
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Most Linuxes will require users to elevate for accessing the device. If you want to access the device as your current user, just add it to the group `dialout` (`ls -lah /dev/ttyACM0` will show you the group to use, usually this is `dialout`) and login again.
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## Usage
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```python
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import time
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from pyps2000b import PS2000B
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device = PS2000B.PS2000B("/dev/ttyACM0")
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print("Device status: %s" % device.get_device_status_information())
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device.enable_remote_control()
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device.voltage1 = 5.1
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device.current1 = 1
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device.enable_output()
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time.sleep(1)
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print("Current output: %0.2f V , %0.2f A" % (device.get_voltage(), device.get_current()))
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device.output1 = False
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```
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## Documentation
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+ product website: http://www.elektroautomatik.de/en/ps2000b.html
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+ programming guide PS 2000 B: http://www.elektroautomatik.de/files/eautomatik/treiber/ps2000b/programming_ps2000b.zip
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