Files
datalogger-POC/readTag.py

35 lines
794 B
Python

#!/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