# -*- coding: utf-8 -*- from demeter.core import * import modbus_tk.defines as mdef import time import random import struct import serial class Handle(object): # 设置数据 def set(self, master, server): #master.set_timeout(600) server['server_time'] = int(server['server_time']) while(True): self.run(master, server) if server['server_time'] > 0: time.sleep(server['server_time']) def run(self, master, server): gateway = Demeter.service('common').list('device_gateway', search={'server_id':server['id']}) if gateway: for v in gateway: if v['product_id']: self.runCode(master, v) def runCode(self, master, gateway): code = Demeter.service('common').list('setting_modbus_code', search={'product_id':gateway['product_id']}) if code: for v in code: if v['register_read_address']: try: self.setValue(v, master, gateway) except: pass # 发送数据 def send(self, master, server, type_info, info, value): #master.set_timeout(600) #master.set_verbose(True) code = Demeter.service('common').one('setting_modbus_code', id=info['code_id']) if not code: return '' write_address = code['register_write_address'].split("\r\n") if not info['code_index']: info['code_index'] = 0 write = write_address[info['code_index']] next_write = '' #多个用换行隔开，寄存器类型,地址,值->1||寄存器类型,地址,值->2&&寄存器类型,地址,值 if '&&' in write: # 执行之后，需要执行的命令码 temp = write.split('&&') write = temp[0] next_write = temp[1] if '||' in write: # 重新定义value temp = write.split('||') for v in temp: if '#' in v: t = v.split('#') if value == t[1]: write = t[0] code = self.getCode(write, code, 2) if 'register_length' in code and code['register_length']: value = code['register_length'] result = '' if code['register_type']: #print(value) value = int(value) master.execute(int(code['slave_id']), int(code['register_type']), int(code['register_address']), output_value=value) result = True ''' read_address = code['register_read_address'].split("\r\n") if info['code_index'] not in read_address: return True code = self.getCode(read_address, code) result = master.execute(int(code['slave_id']), int(code['register_type']), int(code['register_address']), int(code['register_length'])) ''' gateway = Demeter.service('common').one('device_gateway', id=info['gateway_id']) self.setValue(code, master, gateway) if next_write: code = self.getCode(next_write, code, 2) if 'register_length' in code and code['register_length']: value = code['register_length'] master.execute(int(code['slave_id']), int(code['register_type']), int(code['register_address']), output_value=value) return result def setValue(self, code, master, gateway): config = {} config['parent'] = gateway['hardware_id'] address = code['register_read_address'].split("\r\n") write_address = '' write_value = ''; if code['register_write_address']: write_address = code['register_write_address'].split("\r\n") recv = write_address[1] temp = recv.split(',') recv_start = int(temp[0]) recv_len = int(temp[1]) if ',' not in write_address[0]: write_value = master.execute(int(code['slave_id']), write_address[0], 0, expected_length=recv_len) recv_start = recv_start*2 recv_len = recv_len*2 write_value = write_value[recv_start:recv_len] device_type_key = code['device_type_key'].split("\r\n") exp = code['exp'].split("\r\n") j = 0 for i in address: device_type = device_type_key[j] device_type = Demeter.service('common').one('setting_device_type', key=device_type) config['type'] = device_type['key'] info = Demeter.service('common').one('device_info', gateway_id=gateway['id'], code_id=code['id'], code_index=j) hardware = Demeter.service('common').one('hardware_type', id=info['hardware_type']) config['method'] = hardware['key'] config['child'] = info['hardware_id'] code = self.getCode(i, code) code['exp'] = exp[j] if write_value: value = self.getSourceValue(code, info, write_value) else: ''' if write_address: write = write_address[j] write_code = self.getCode(write, {}, 2) if '|' in write_code['register_length']: temp = write_code['register_length'].split('|') write_value = [] for a in temp: write_value.append(int(a)) else: write_value = write_code['register_length'] master.execute(int(code['slave_id']), int(write_code['register_type']), int(write_code['register_address']), output_value=write_value) ''' value = self.getValue(code, master, info) #print(value) j = j + 1 name = info['name'] Demeter.service('device').save(config, value, name, device_type) def getSourceValue(self, code, info, source): register_address = int(code['register_address']) * 2 register_length = register_address + (int(code['register_length']) * 2) value = source[register_address:register_length] value = self.hex2dec(value) return self.exp(code, info, value) def getValue(self, code, master, info): temp = master.execute(int(code['slave_id']), int(code['register_type']), int(code['register_address']), int(code['register_length'])) #value = struct.unpack('>f', struct.pack('>HH', temp[0], temp[1])) #value = str(round(temp[0], 2)) #value = str(temp) value = str(temp[0]) return self.exp(code, info, value) def exp(self, code, info, value): if value and value != '0': if 'exp' in code and code['exp']: value = Demeter.exp(code['exp'], value) if 'exp' in info and info['exp'] and info['exp'] != '-1': value = Demeter.exp(info['exp'], value) value = str(round(float(value), 2)) return value def hex2dec(self, string_num): #start = string_num[0:1] #大于8为负数 后续处理吧 return str(int(string_num.upper(), 16)) def getCode(self, address, code, type = 1): (code['register_type'],code['register_address'],code['register_length']) = address.split(',') code['register_type'] = int(code['register_type']) if type == 1: if code['register_type'] == 1: # 线圈 code['register_type'] = mdef.READ_COILS elif code['register_type'] == 2: code['register_type'] = mdef.READ_DISCRETE_INPUTS elif code['register_type'] == 3: code['register_type'] = mdef.READ_HOLDING_REGISTERS elif code['register_type'] == 4: code['register_type'] = mdef.READ_INPUT_REGISTERS else: if code['register_type'] == 1: # 线圈 code['register_type'] = mdef.WRITE_SINGLE_COIL elif code['register_type'] == 2: code['register_type'] = mdef.WRITE_MULTIPLE_COILS elif code['register_type'] == 3: code['register_type'] = mdef.WRITE_SINGLE_REGISTER elif code['register_type'] == 4: code['register_type'] = mdef.WRITE_MULTIPLE_REGISTERS return code def calculate_crc(data): """Calculate the CRC16 of a datagram""" CRC16table = ( 0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241, 0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440, 0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40, 0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841, 0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40, 0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41, 0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641, 0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040, 0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240, 0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441, 0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41, 0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840, 0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41, 0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40, 0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640, 0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041, 0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240, 0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441, 0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41, 0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840, 0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41, 0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40, 0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640, 0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041, 0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241, 0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440, 0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40, 0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841, 0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40, 0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41, 0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641, 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040 ) crc = 0xFFFF if PY2: for c in data: crc = (crc >> 8) ^ CRC16table[(ord(c) ^ crc) & 0xFF] else: for c in data: crc = (crc >> 8) ^ CRC16table[((c) ^ crc) & 0xFF] return swap_bytes(crc)