class Modbus:
_log = None
_config = None
_modbus_callback = None
store = None
context = None
identity = None
def __init__(self, config, modbus_callback):
self._log = logging.getLogger(logger_name)
self._config = config
self._log.info("Initializing Modbus slave")
self._modbus_callback = modbus_callback
self.store = ModbusSlaveContext(
di=ModbusSequentialDataBlock(1, [0] * 384)
# di = ModbusSequentialDataBlock(1, [0]*192)
)
self.context = ModbusServerContext(slaves=self.store, single=True)
self.identity = ModbusDeviceIdentification()
self.identity.VendorName = 'blbecek.net'
self.identity.ProductCode = 'PARADOX'
self.identity.VendorUrl = 'https://github.com/czertique/paradox-modbus/'
self.identity.ProductName = 'paradox-modbus interface'
self.identity.ModelName = 'paradox-modbus interface'
self.identity.MajorMinorRevision = '1.0'
def setValue(self, addr, value):
self._log.debug("modbus.setValue: addr=%s, value=%s" % (addr, value))
fx = 0x2
self.context.setValues(fx, addr, value)
def loop(self):
port = get_config(self._config, "modbus.port")
listen_addr = get_config(self._config, "modbus.listen_addr")
StartTcpServer(self.context,
identity=self.identity,
address=(listen_addr, port))
def process_queue_event(self, event_type, event_input, event_data):
# self._log.debug("Processing queue event: %s / %s / %s" % (type, input, data))
slave_id = 0x00
ctx = self.context[slave_id]
if event_type == "zone":
try:
zone_number = event_data["data"]["id"]
zone_open = event_data["data"]["open"]
zone_tamper = event_data["data"]["tamper"]
addr_spacing = 192
modbus_open_addr = zone_number - 1
modbus_tamper_addr = modbus_open_addr + addr_spacing
modbus_alarm_addr = modbus_tamper_addr + addr_spacing
modbus_lowbatt_addr = modbus_alarm_addr + addr_spacing
self._log.info("Processing zone %d event" % (zone_number))
fx = 0x02
ctx.setValues(fx, modbus_open_addr, [zone_open * 1])
ctx.setValues(fx, modbus_tamper_addr, [zone_tamper * 1])
except:
self._log.error("Unable to parse zone event: %s" %
(event_data))
def close(self):
self._log.info("Destroying Modbus slave")
