print("modbus test") # Настройки клиента Modbus MODBUS_SERVER_HOST = "192.168.70.55" # IP-адрес Modbus-сервера MODBUS_SERVER_PORT = 502 MODBUS_SLAVE_ID = 11 indent = 21100 s = 800 k = 2 from pymodbus.client import ModbusTcpClient from pymodbus.constants import Endian from pymodbus.payload import BinaryPayloadDecoder import time import struct def two_byte_convert(result): # print(result) v0 = result.registers[0] value = (v0 << 16) + result.registers[1] if result.registers[0] > (65535 * 0.5): value = value - (1 << 32) return value def bulb(addr): try: coils = client.read_coils(addr, 1, MODBUS_SLAVE_ID) print("читаем начальное состояние", coils.bits) new_bits = coils.bits new_bits[0] = not new_bits[0] print("пытаемся записать", new_bits, coils.slave_id) result = client.write_coil(addr, new_bits[0], coils.slave_id) print(result) print( "читаем после попытки", client.read_coils(0, len(coils.bits), coils.slave_id).bits, ) except Exception as e: raise e def get_coordinates(): try: data = [ ("j1", 2268), ("j2", 2270), ("j3", 2272), ("j4", 2274), ("j5", 2276), ("j6", 2278), ("x", 2332), ("y", 2334), ("z", 2336), ("u", 2338), ("v", 2340), ("w", 2342), ] i = 2 for d in data: result = client.read_holding_registers(d[1], 2, MODBUS_SLAVE_ID) value = two_byte_convert(result) adjusted_value = value / 1000.0 i *= 2 print(d[0], result.registers, adjusted_value) except Exception as e: raise e def get_or_set_speed(number=None): result = client.read_holding_registers(20200, 1, MODBUS_SLAVE_ID) print("сейчас скорость", result.registers[0] * 0.1) if number and number > 0 and number <= 1000: client.write_register(20200, number * 10, MODBUS_SLAVE_ID) result = client.read_holding_registers(20200, 1, MODBUS_SLAVE_ID) print("установлена скорость", result.registers[0] * 0.1) def set_user_register(n, values): client.write_registers(indent + s + k * n, values, MODBUS_SLAVE_ID) def to_double(integr): return [(integr >> 16) & 0xFFFF, integr & 0xFFFF] client = ModbusTcpClient( host=MODBUS_SERVER_HOST, port=MODBUS_SERVER_PORT, ) client.connect() # максимальное количество coils = 286 # bulb(2) # get_coordinates() # get_or_set_speed(10) try: # старт в авторежиме single loop client.write_register(20002, 1, MODBUS_SLAVE_ID) total = 0 state = None counter = 0 while True: time.sleep(1) total += 1 green_light = client.read_coils(0, 1, MODBUS_SLAVE_ID).bits[0] if state == green_light: continue if green_light == False: continue state = green_light counter += 1 # собираем предварительные данные x = two_byte_convert(client.read_holding_registers(2332, 2, MODBUS_SLAVE_ID)) y = two_byte_convert(client.read_holding_registers(2334, 2, MODBUS_SLAVE_ID)) z = two_byte_convert(client.read_holding_registers(2336, 2, MODBUS_SLAVE_ID)) u = two_byte_convert(client.read_holding_registers(2338, 2, MODBUS_SLAVE_ID)) v = two_byte_convert(client.read_holding_registers(2340, 2, MODBUS_SLAVE_ID)) w = two_byte_convert(client.read_holding_registers(2342, 2, MODBUS_SLAVE_ID)) print( f"Предварительные данные X {x * 0.001}, Y {y * 0.001}, Z {z*0.001}, U {u*0.001}, V {v*0.001}, W {w*0.001}" ) if counter == 1: x -= 100 * 1000 elif counter == 2: y -= 100 * 1000 elif counter == 3: x += 100 * 1000 elif counter == 4: y += 100 * 1000 else: counter = 0 data = [ (0, to_double(x)), (1, to_double(y)), (2, to_double(z)), (3, [0, 0]), (4, [0, 0]), (5, [0, 0]), ] for item in data: d, values = item set_user_register(d, values) result = client.read_holding_registers(indent + s + k * d, k, MODBUS_SLAVE_ID) print(s + d, "===", two_byte_convert(result) * 0.001) client.write_coil(0, !green_light, MODBUS_SLAVE_ID) except Exception as e: print("error", e) client.close()