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import sys
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sys.path.append('../../')
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import struct
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from enum import Enum
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from utils.DBModels.DeviceParModels import *
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from protocol.ModBus.DPV1Master import DPV1Master
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class BlockType(Enum):
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PB = 0
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TB = 1
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FB = 2
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class BlockManage():
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address = 66
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def __init__(self):
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self.DPV1Master = DPV1Master('192.168.3.10', 502)
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self.blockDict = {
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BlockType.PB : [],
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BlockType.TB : [],
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BlockType.FB : [],
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}
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self.initBlocks()
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def initBlocks(self):
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dirHeadDatas = self.DPV1Master.readParm(address = self.address, slot = 1, index = 0, length = 12)
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DirID = dirHeadDatas[0] # 目录id
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DirRevNum = dirHeadDatas[1] # 目录版本号
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NumDirObj = dirHeadDatas[2] # 目录对象的个数 (如果整个目录使用多于一个目录对象，
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# 则这此元素被连续定义，就如同使用一个较大的对象。
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# 多个目录对象都被连续地列在该目录中。该对象计数整个目录所需的对象。Header对象不计人其)
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NumDirEntry = dirHeadDatas[3] # 目录登录项的总数 (应计算复合列表目录登录项和复合目录登录项的总个数；实际块数量为NumDirEntry - 3)
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FirstCompListDirEntry = dirHeadDatas[4] # 第1个复合列表目录登录项的目录登录项个数 (该数用来计数目录内的登录项， 而不包含该登
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# 录项的参数地址。第1 个目录登录项是在复合列表目录登录项中的物理块引用。在计数登录
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# 项时，复合列表目录登录项与复合目录登录项之间无间隔)
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NumCompListDirEntry = dirHeadDatas[5] # 功能块类型数量 复合列表目录登录项的个数 计数设备内的不同块类型(物理块、转换块和功能块)和对象类型
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#（在本标准范围内仅针对链接对象）
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dirLength = 4 * NumDirEntry
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dirDatas = self.DPV1Master.readParm(address = self.address, slot = 1, index = 1, length = dirLength)
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entryTuples = [(dirDatas[i], dirDatas[i+1]) for i in range(0, len(dirDatas), 2)]
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for typ in [BlockType.PB, BlockType.TB, BlockType.FB]:
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typeIndex = typ.value
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blkDirMesByte = struct.pack('>h', entryTuples[typeIndex][0])
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blkIndex = int(blkDirMesByte[0]) # 目录对象编号
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blkoffect = int(blkDirMesByte[1]) # 块从第几个Dir_Entry开始
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numBlk = entryTuples[typeIndex][1] # 块数量
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# print(blkIndex, blkoffect, numBlk)
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for i in range(numBlk):
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blkEntryListIndex = blkoffect - 1 + i
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blkPointerByte = struct.pack('>h', entryTuples[blkEntryListIndex][0])
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numBlkParms = entryTuples[blkEntryListIndex][1]
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blkSlot = int(blkPointerByte[0])
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blkStartIndex = int(blkPointerByte[1])
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block = Block(typ)
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block.slot = blkSlot
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block.startAddress = blkStartIndex
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block.numParms = numBlkParms
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self.blockDict[typ].append(block)
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# print(blkSlot, blkIndex)
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print(self.blockDict)
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class Block():
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slot = None
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startIndex = None
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numParms = None
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def __init__(self, blockType):
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self.parms = []
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self.blockType = blockType
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self.addParms()
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def addParms(self):
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pass
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# getParmsFunc = {
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# BlockType.PB: PhysicalBlock.getallParame,
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# BlockType.TB: AIFunctionBlock.getallParame,
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# BlockType.FB: PressureTranslationBlock.getallParame,
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# }.get(self.blockType, lambda: [])
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# parms_data = getParmsFunc()
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if __name__ == '__main__':
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b = BlockManage()
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# b.initBlock() |