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70 lines
1.8 KiB
Python
70 lines
1.8 KiB
Python
7 months ago
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import struct
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import socket
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import time
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# commond
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# 1、Start
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# 2、Stop
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# 3、Quit
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# 4、Data
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def getRealAO(x,highValue, lowValue):
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if highValue:
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lowValue = float(lowValue)
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highValue = float(highValue)
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return (16 * (x - lowValue) + 4 * (highValue-lowValue))/(1000 * (highValue - lowValue))
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else:
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return x/1000
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class AnalogDataPacket(object):
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def __init__(self, commond: int, PacketSerialNo: int, lis: list):
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self.PacketSerialNo = PacketSerialNo
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# print(struct.pack('d', struct.pack('B' * 8, *lis[16:])))
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DO = ''
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for x in reversed(lis[16:]):
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DO += str(int(x))
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# print(DO)s
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DO = int(DO, 2)
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# print(lis)
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valueList = lis[:16] + [DO]
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self.value = struct.pack('d' * 17, *valueList)
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self.commond = commond
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self.buf = [
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0xF312, self.commond, self.PacketSerialNo, self.value, 0xF314
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]
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# print(self.buf)
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def packBytes(self):
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packstyle = '>HHL{}sH'.format(str(len(self.value)))
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req = struct.pack(packstyle, *self.buf)
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return req
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class AnalogClient(object):
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def __init__(self, url):
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# print(url)
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host, port = url.split(':')
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self._host = host
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self._port = int(port)
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self.socket = socket.socket()
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self.packNo = 0X000001
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def connect(self):
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self.socket.connect((self._host, self._port))
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def close(self):
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self.socket.close()
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def writeData(self, lis: list):
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l = [x for x in lis]
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for i in range(8):
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l[i] = l[i]
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pack = AnalogDataPacket(4, self.packNo, l)
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self.socket.send(pack.packBytes())
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self.packNo += 1
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res = self.socket.recv(8)
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data = struct.unpack('>HLH', res)
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# print(data)
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return data
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