from subprocess import call
import urllib
import xml.etree.ElementTree as ET
import time, math
TELNET = "telnet 192.168.2.241 10001"
time_delay = 0.3
time_step = 0.001
#res = Device("192.168.2.243:10001")
#print res.get_outputs_state("192.168.2.243:10001")
Ion = "echo '*B1OS1H'|" + TELNET
Ioff = "echo '*B1OS1L'|" + TELNET
IIon = "echo '*B1OS2H'|" + TELNET
IIoff = "echo '*B1OS2L'|" + TELNET
IIIon = "echo '*B1OS3H'|" + TELNET
IIIoff = "echo '*B1OS3L'|" + TELNET
IVon = "echo '*B1OS4H'|" + TELNET
IVoff = "echo '*B1OS4L'|" + TELNET
Von = "echo '*B1OS5H'|" + TELNET
Voff = "echo '*B1OS5L'|" + TELNET
VIon = "echo '*B1OS6H'|" + TELNET
VIoff = "echo '*B1OS6L'|" + TELNET
VIIon = "echo '*B1OS7H'|" + TELNET
VIIoff = "echo '*B1OS7L'|" + TELNET
VIIIon = "echo '*B1OS8H'|" + TELNET
VIIIoff = "echo '*B1OS8L'|" + TELNET
class Varistor():
def __init__(self, addr, rang=0.2):
self.url = addr
self.rang = rang
def _move(self, val):
for i in xrange(abs(val)):
if val > 0:
call(IIon, shell=True)
call(IIIon, shell=True)
else:
call(IIoff, shell=True)
call(IIIoff, shell=True)
time.sleep(time_delay)
call(Ion, shell=True)
time.sleep(time_step)
call(Ioff, shell=True)
time.sleep(time_step)
def setValue(self, value):
while True:
currentVal = self.getValue()
offset = currentVal - value
print offset
if abs(offset) < self.rang: # we are in range of the value
return
self._move(int(math.ceil(offset*10))) # move the head a little
def getValue(self):
data = urllib.urlopen(self.url).read()
root = ET.fromstring(data)
inputs = root[0]
return float(inputs.attrib['val'])
va = Varistor('http://192.168.2.242/data.xml')
call(IVon, shell=True);call(VIIon, shell=True);call(VIIIon, shell=True)
time.sleep(1)
print va.getValue()
va.setValue(2.8)
#call(IVoff, shell=True);call(VIIoff, shell=True);call(VIIIoff, shell=True)
print "done"
