demo lakeshore with simulation

- example for lakeshore tutorial
- lakeshore simulator (merge with frappy_psils370sim)
- rename stringio-server to sim-server

Change-Id: I33a9c75ea268349573f8a8387910921e19f242eb
Reviewed-on: https://forge.frm2.tum.de/review/c/secop/frappy/+/30516
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>

frappy_psi/ls370sim.py

@@ -1,75 +0,0 @@
-#!/usr/bin/env python
-#  -*- coding: utf-8 -*-
-# *****************************************************************************
-# This program is free software; you can redistribute it and/or modify it under
-# the terms of the GNU General Public License as published by the Free Software
-# Foundation; either version 2 of the License, or (at your option) any later
-# version.
-#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
-# details.
-#
-# You should have received a copy of the GNU General Public License along with
-# this program; if not, write to the Free Software Foundation, Inc.,
-# 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-#
-# Module authors:
-#   Markus Zolliker <markus.zolliker@psi.ch>
-# *****************************************************************************
-"""a very simple simulator for a LakeShore Model 370"""
-
-from frappy.modules import Communicator
-
-
-class Ls370Sim(Communicator):
-    CHANNEL_COMMANDS = [
-        ('RDGR?%d', '1.0'),
-        ('RDGST?%d', '0'),
-        ('RDGRNG?%d', '0,5,5,0,0'),
-        ('INSET?%d', '1,5,5,0,0'),
-        ('FILTER?%d', '1,5,80'),
-    ]
-    OTHER_COMMANDS = [
-        ('*IDN?', 'LSCI,MODEL370,370184,05302003'),
-        ('SCAN?', '3,1'),
-        ('*OPC?', '1'),
-    ]
-
-    def earlyInit(self):
-        super().earlyInit()
-        self._data = dict(self.OTHER_COMMANDS)
-        for fmt, v in self.CHANNEL_COMMANDS:
-            for chan in range(1,17):
-                self._data[fmt % chan] = v
-
-    def communicate(self, command):
-        self.comLog('> %s' % command)
-        # simulation part, time independent
-        for channel in range(1,17):
-            _, _, _, _, excoff = self._data['RDGRNG?%d' % channel].split(',')
-            if excoff == '1':
-                self._data['RDGST?%d' % channel] = '6'
-            else:
-                self._data['RDGST?%d' % channel] = '0'
-
-        chunks = command.split(';')
-        reply = []
-        for chunk in chunks:
-            if '?' in chunk:
-                reply.append(self._data[chunk])
-            else:
-                for nqarg in (1,0):
-                    if nqarg == 0:
-                        qcmd, arg = chunk.split(' ', 1)
-                        qcmd += '?'
-                    else:
-                        qcmd, arg = chunk.split(',', nqarg)
-                        qcmd = qcmd.replace(' ', '?', 1)
-                    if qcmd in self._data:
-                        self._data[qcmd] = arg
-                        break
-        reply = ';'.join(reply)
-        self.comLog('< %s' % reply)
-        return reply