Zookeeper

A python module to automate MCCI lab equipment using PyVisa

Installing

You can install ZooKeeper using standard pip install:

pip install .

in the root directory

Usage

Command Line

You can run ZooKeeper from the root directory using:

python -m zookeeper [-b <backend>]

backend: specifies the PyVisa backend @py default, PyVisa-py backend @sim simulation backend

Scripting

For the moment, you can use the VISA device classes in a scripting environment by importing the SCPI package:

import SCPI

SCPI

The SCPI package implements all the functionality of an SCPI instrument. You can create an instrument with a valid port, connect to it and disconnect when you are finished (this destroys the python object).

import SCPI

# create an SCPI instrument
inst = SCPI.Instrument(prot=<port>, backend=<backend>)
# now connect to the device
inst.connect()

Commands

You can perform SCPI commands in multiple ways. The easiest method is to use a hierarchial attribute command:

# SCPI -> MEASure:VOLTage 1
inst.measure.voltage(1)

Any command without an argument is a query.

Device Drivers

Rohde and Schwarz HM4040

A high level driver for the Rohde and Schwarz power supply

Keysight 33500B

NOTES

• check backend version number with python -m visa info