def get_orders(self):
"""
Retrieve the amount of currently placed orders.
:return: The order count.
"""
state_value = application.Disconnected().modbus_value
if self.is_connected():
try:
state_value = self.modbus_client.read_holding_registers(
int(ModbusTCPRegisters.Orders), 1).registers[0]
except:
pass
return state_value
def set_reset(self):
"""
Initiate the reset signal to get the PLC out of the emergency stop state.
:return: The PLC connectors response, so it can be use if of interest.
"""
state_value = application.Disconnected().modbus_value
if self.is_connected():
try:
state_value = self.modbus_client.write_register(
int(ModbusTCPRegisters.Reset), 1)
except:
pass
return state_value
def get_application_state(self):
"""
Query the application state.
:return: A dictionary containing the current application state.
"""
state_value = application.Disconnected().modbus_value
if self.is_connected():
try:
state_value = \
self.modbus_client.read_holding_registers(int(ModbusTCPRegisters.PlcApplicationState), 1).registers[
0]
except:
pass
return state_value
def set_application_state(self, state):
"""
Set the current application state.
:param state:
:return: The PLC connectors response, so it can be use if of interest.
"""
state_value = application.Disconnected().modbus_value
if self.is_connected():
try:
state_value = self.modbus_client.write_register(
int(ModbusTCPRegisters.HmiApplicationState),
state.modbus_value)
except:
pass
return state_value
def set_motor(self, motor, motor_state):
"""
Turn a motor of the process manually on or off.
:param motor: Which motor is to be set.
:param motor_state: On or Off.
:return: The PLC connectors response, so it can be use if of interest.
"""
register = self.motor_controls[motor]
state_value = application.Disconnected().modbus_value
if self.is_connected():
try:
state_value = self.modbus_client.write_register(
register, int(motor_state))
except:
pass
return state_value
def test_disconnected(self):
DisconnectedState = app_states.Disconnected()
assert DisconnectedState.modbus_value == 3
assert DisconnectedState.text == "DISCONNECTED"
assert DisconnectedState.name == "disconnected"
assert DisconnectedState.classes == ["btn btn-info mr-auto"]
