#!/usr/bin/env python

import sys
from pycomm.ab_comm.clx import Driver as ClxDriver
from readConfigimport readConfig

configProperties = readConfig()

def main(tagName):
	global configProperties
    c = ClxDriver()

	def readString(tag):
		read_vals = c.read_array(tag, 82)
		string = filter(lambda b: b != "",map(lambda a: chr(a[1]),read_vals))
		return "".join(string)

	if c.open(configProperties['PLC_IP_ADDRESS']):
		out = {}
		try:
			result =  c.read_tag([tagName])
			if result[0][2] == None:
				raise ValueError('Tag not found')
			out['status'] = "success"
			out['value'] = result[0][1]
			out['type'] = result[0][2]
		except Exception, e:
			out['status'] = "error"
			out['message'] = "Tag not found"
		return out

if __name__ == '__main__':
	res =  main(sys.argv[1])
	print res