c = ClxDriver()
print c['port']
print c.__version__
if c.open('172.16.2.161'):
while 1:
try:
print(c.read_tag(['ControlWord']))
print(c.read_tag(['parts', 'ControlWord', 'Counts']))
print(c.write_tag('Counts', -26, 'INT'))
print(c.write_tag(('Counts', 26, 'INT')))
print(c.write_tag([('Counts', 26, 'INT')]))
print(
c.write_tag([('Counts', -26, 'INT'),
('ControlWord', -30, 'DINT'),
('parts', 31, 'DINT')]))
sleep(1)
except Exception as e:
c.close()
print e
pass
# To read an array
r_array = c.read_array("TotalCount", 1750)
for tag in r_array:
print(tag)
c.close()
class EIPFunctions:
def __init__(self):
# initialize a thread safe queue
# load queue with a single plc obj
self.plc = ClxDriver()
self.mutex = Lock()
def is_connected(self):
with self.mutex:
return self.plc.is_connected()
def connect_plc(self, ip):
with self.mutex:
self.plc.open(ip)
return self.plc.is_connected()
def disconnect_plc(self):
with self.mutex:
if self.plc.is_connected():
self.plc.close()
def read_tag(self, tag_name):
with self.mutex:
return self.plc.read_tag(tag_name)[0]
def write_tag(self, tag_name, tag_value, tag_type):
"""
:param tag_name: tag name, or an array of tuple containing (tag name, value, data type)
:param tag_value: the value to write or none if tag is an array of tuple or a tuple
:param tag_type: the type of the tag to write or none if tag is an array of tuple or a tuple
:return: None is returned in case of error otherwise the tag list is returned
The type accepted are:
- BOOL
- SINT
- INT'
- DINT
- REAL
- LINT
- BYTE
- WORD
- DWORD
- LWORD
"""
with self.mutex:
return self.plc.write_tag(tag_name, tag_value, tag_type)
def read_tag_string(self, tag_name):
with self.mutex:
return self.plc.read_string(tag_name)
def write_tag_string(self, tag_name, tag_value):
with self.mutex:
return self.plc.write_string(tag_name, tag_value)
def read_tag_array(self, tag_name, count):
with self.mutex:
return self.plc.read_array(tag_name, count)
def write_tag_array(self, tag_name, tag_array, tag_type):
with self.mutex:
self.plc.write_array(tag_name, tag_array, tag_type)
# always return true; pycomm is not telling us if we succeed or not
return True
from pycomm.ab_comm.clx import Driver as ClxDriver
if __name__ == '__main__':
c = ClxDriver(True, 'ClxDriver.log')
if c.open('172.16.2.161'):
print(c.read_tag(['ControlWord']))
print(c.read_tag(['parts', 'ControlWord', 'Counts']))
print(c.write_tag('Counts', -26, 'INT'))
print(c.write_tag(('Counts', 26, 'INT')))
print(c.write_tag([('Counts', 26, 'INT')]))
print(c.write_tag([('Counts', -26, 'INT'), ('ControlWord', -30, 'DINT'), ('parts', 31, 'DINT')]))
# To read an array
r_array = c.read_array("TotalCount", 1750)
for tag in r_array:
print (tag)
# reset tha array to all 0
w_array = []
for i in xrange(1750):
w_array.append(0)
c.write_array("TotalCount", "SINT", w_array)
c.close()
