158 lines
6.3 KiB
Python
158 lines
6.3 KiB
Python
"""Driver for prostarsolar."""
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import threading
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from device_base import deviceBase
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from Channel import read_tag, write_tag
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from Channel import ModbusChannel
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from Maps import charge_state, array_faults
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import persistence
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from random import randint
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from utilities import get_public_ip_address, int_to_float16
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import json
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import time
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import minimalmodbus
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import minimalmodbusM1
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_ = None
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# GLOBAL VARIABLES
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WATCHDOG_SEND_PERIOD = 3600 # Seconds, the longest amount of time before sending the watchdog status
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PLC_IP_ADDRESS = "192.168.1.10"
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CHANNELS = [
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ModbusChannel("adc_ia", 17, "REAL", 0.5, 3600, transformFn=int_to_float16),
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ModbusChannel("adc_vbterm", 18, "REAL", 0.5, 3600, transformFn=int_to_float16),
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ModbusChannel("adc_va", 19, "REAL", 0.5, 3600, transformFn=int_to_float16),
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ModbusChannel("adc_vl", 20, "REAL", 0.5, 3600, transformFn=int_to_float16),
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ModbusChannel("adc_il", 22, "REAL", 0.5, 3600, transformFn=int_to_float16),
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ModbusChannel("t_amb", 28, "REAL", 2.0, 3600, transformFn=int_to_float16),
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ModbusChannel("vb_min_daily", 65, "REAL", 2.0, 3600, transformFn=int_to_float16),
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ModbusChannel("vb_max_daily", 66, "REAL", 2.0, 3600, transformFn=int_to_float16),
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ModbusChannel('charge_state', 33, "STRING", 1, 3600, transformFn=charge_state),
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ModbusChannel('array_fault', 34, "STRING", 1, 3600, transformFn=array_faults)
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]
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# PERSISTENCE FILE
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persist = persistence.load()
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class start(threading.Thread, deviceBase):
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"""Start class required by Meshify."""
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def __init__(self, name=None, number=None, mac=None, Q=None, mcu=None, companyId=None, offset=None, mqtt=None, Nodes=None):
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"""Initialize the driver."""
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threading.Thread.__init__(self)
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deviceBase.__init__(self, name=name, number=number, mac=mac, Q=Q, mcu=mcu, companyId=companyId, offset=offset, mqtt=mqtt, Nodes=Nodes)
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self.daemon = True
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self.version = "1"
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self.finished = threading.Event()
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self.forceSend = False
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threading.Thread.start(self)
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# this is a required function for all drivers, its goal is to upload some piece of data
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# about your device so it can be seen on the web
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def register(self):
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"""Register the driver."""
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# self.sendtodb("log", "BOOM! Booted.", 0)
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pass
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def run(self):
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"""Actually run the driver."""
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global persist
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wait_sec = 60
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for i in range(0, wait_sec):
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print("prostarsolar driver will start in {} seconds".format(wait_sec - i))
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time.sleep(1)
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print("BOOM! Starting prostarsolar driver...")
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self.nodes["prostarsolar_0199"] = self
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public_ip_address = get_public_ip_address()
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self.sendtodbDev(1, 'public_ip_address', public_ip_address, 0, 'prostarsolar')
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# watchdog = self.prostarsolar_watchdog()
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# self.sendtodbDev(1, 'watchdog', watchdog, 0, 'prostarsolar')
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# watchdog_send_timestamp = time.time()
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connected_to_485 = False
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while connected_to_485 is False:
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connected_to_485 = self.mcu.set485Baud(9600)
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serial_485 = self.mcu.rs485
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instrument_485 = minimalmodbusM1.Instrument(1, serial_485)
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instrument_485.address = 1
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send_loops = 0
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watchdog_loops = 0
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watchdog_check_after = 5000
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while True:
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if self.forceSend:
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print "FORCE SEND: TRUE"
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for chan in CHANNELS:
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try:
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val = chan.read(instrument_485.read_register(chan.register_number, functioncode=4))
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if chan.check(val, self.forceSend):
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self.sendtodbDev(1, chan.mesh_name, chan.value, 0, 'prostarsolar')
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time.sleep(0.1)
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except IOError as e:
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print("IO Error: {}".format(e))
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print("Attempting to reconnect to rs485 device")
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connected_to_485 = False
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while connected_to_485 is False:
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connected_to_485 = self.mcu.set485Baud(9600)
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serial_485 = self.mcu.rs485
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instrument_485 = minimalmodbusM1.Instrument(1, serial_485)
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instrument_485.address = 1
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# print("prostarsolar driver still alive...")
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if self.forceSend:
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if send_loops > 2:
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print("Turning off forceSend")
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self.forceSend = False
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send_loops = 0
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else:
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send_loops += 1
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watchdog_loops += 1
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if (watchdog_loops >= watchdog_check_after):
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# test_watchdog = self.prostarsolar_watchdog()
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# if not test_watchdog == watchdog or (time.time() - watchdog_send_timestamp) > WATCHDOG_SEND_PERIOD:
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# self.sendtodbDev(1, 'watchdog', test_watchdog, 0, 'prostarsolar')
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# watchdog = test_watchdog
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test_public_ip = get_public_ip_address()
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if not test_public_ip == public_ip_address:
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self.sendtodbDev(1, 'public_ip_address', test_public_ip, 0, 'prostarsolar')
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public_ip_address = test_public_ip
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watchdog_loops = 0
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time.sleep(10)
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def prostarsolar_watchdog(self):
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"""Write a random integer to the PLC and then 1 seconds later check that it has been decremented by 1."""
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randval = randint(0, 32767)
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write_tag(str(PLC_IP_ADDRESS), 'watchdog_INT', randval)
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time.sleep(1)
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watchdog_val = read_tag(str(PLC_IP_ADDRESS), 'watchdog_INT')
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try:
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return (randval - 1) == watchdog_val[0]
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except (KeyError, TypeError):
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return False
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def prostarsolar_sync(self, name, value):
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"""Sync all data from the driver."""
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self.forceSend = True
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# self.sendtodb("log", "synced", 0)
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return True
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def prostarsolar_writeplctag(self, name, value):
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"""Write a value to the PLC."""
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new_val = json.loads(str(value).replace("'", '"'))
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tag_n = str(new_val['tag']) # "cmd_Start"
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val_n = new_val['val']
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w = write_tag(str(PLC_IP_ADDRESS), tag_n, val_n)
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print("Result of prostarsolar_writeplctag(self, {}, {}) = {}".format(name, value, w))
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if w is None:
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w = "Error writing to PLC..."
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return w
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