66 lines
No EOL
1.9 KiB
Python
66 lines
No EOL
1.9 KiB
Python
import easymodbus.modbusClient
|
|
|
|
|
|
class WebRelay:
|
|
def __init__(self, n_relay=10):
|
|
self.n_relay = n_relay
|
|
self.relay_status = [False for i in range(self.n_relay)]
|
|
self.client = None
|
|
|
|
def __del__(self):
|
|
if self.client:
|
|
if self.client.is_connected():
|
|
self.client.close()
|
|
|
|
def apply_network_configs(self, nc_dict):
|
|
self.ip_address = nc_dict["ipaddr"]
|
|
self.port = nc_dict["port"]
|
|
self.uid = nc_dict["uid"]
|
|
|
|
def connect_slave(self):
|
|
if not self.client:
|
|
self.client = easymodbus.modbusClient.ModbusClient(self.ip_address, self.port)
|
|
self.client.unitidentifier = self.uid
|
|
self.client.connect()
|
|
else:
|
|
if not self.client.is_connected():
|
|
self.client = None
|
|
self.connect_slave()
|
|
|
|
def disconnect_slave(self):
|
|
if self.client:
|
|
self.client.close()
|
|
self.client = None
|
|
|
|
'''
|
|
def WriteSingleCoil(self, startingAddress, value)
|
|
|
|
Write single Coil to Server device (Function code 5)
|
|
startingAddress: Coil to be written
|
|
value: Coil Value to be written
|
|
|
|
def WriteMultipleCoils(self, startingAddress, values)
|
|
|
|
Write multiple coils to Server device (Function code 15)
|
|
startingAddress : First coil to be written
|
|
values: Coil Values [0..quantity-1] to be written
|
|
'''
|
|
|
|
def turn_relay_on(self, relay_id):
|
|
'''
|
|
:param relay_id: id of relay to turn on
|
|
:return: None
|
|
'''
|
|
self.check_write_single_coil(relay_id, True)
|
|
|
|
def turn_relay_off(self, relay_id):
|
|
'''
|
|
:param relay_id: id of relay to turn off
|
|
:return: None
|
|
'''
|
|
self.check_write_single_coil(relay_id, False)
|
|
|
|
def check_write_single_coil(self, relay_id, value):
|
|
if self.client:
|
|
if self.client.is_connected():
|
|
self.client.write_single_coil(relay_id, value) |