Interfacing to Fluke 8845/8846 over LAN.

fluke.py

import socket
import select
import string
import sys
import time


class Fluke884x(object):

    def __init__(self, host=None, port=None):
        self.host = host
        self.port = port
        self._connect()
        self._set_remote_mode()

    def _connect(self):
        srvsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        srvsock.connect((self.host, self.port))
        srvsock.setblocking(0)
        self.srv = srvsock

    def _set_remote_mode(self):
        res = self.query('System:remote')
        res = self.query('DISP:TEXT ""')
        res = self.query('sens:volt:nplc 60')

    def query(self, cmd):
        self.srv.sendall(cmd+'\r\n')
        if not cmd.lower() == 'read?':
            return ''
        buff = ''
        while len(buff) == 0:
            try:
                buff += self.srv.recv(1024)
            except socket.error:
                time.sleep(1)
                pass
        return buff


if __name__ == '__main__':
    fluke = Fluke884x('192.168.1.101', 3490)
    res = fluke.query('Read?')
    print '{}'.format(res)