PDA高速数据采集分析系统 ─ 详尽解析质量管理及工业大数据来源 |
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PDAServer计算机中需要安装Wireshark,不能安装Step7、SimaticNet等任何其它相关的软件,否则不能正常采集数据。 10.1 按变量地址采集 数据源类型为1,注意字节交换,采样周期10ms数量级。 S7-300一个连接最多只能采集连续地址220字节,S7-400字节数无限制,但S7-400总的通讯量较大时不宜超过440字节。 可采集的数据区为IB[0..65535]、QB[0..65535]、MB[0..65535]、DB[1..65535].DBB[0..32767]。PLC中硬件组态如下: 同一台PLC可建立多条连接,余同4.9节。 PLC的CPU在3槽,PDA服务器IP为172.16.210.210组态示例如下: [1000,2CH,10.000ms,,1S,Note,172.16.210.210,3,,,,,08-00-06-91-F7-C3] No,
Name,Adr/note,Unit,Len,Offset
,Gain
,Type,ALM, CH1=, IW0 ,IW0 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH2=, IW2 ,IW2 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 [2000,18CH,10.000ms,,1S,Note,172.16.210.210,3,,,,,08-00-06-91-F7-C3] No,
Name,Adr/note,Unit,Len,Offset
,Gain ,Type,ALM, CH1=, QW0 ,QW0 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH2=, QW2 ,QW2 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH3=, QW4 ,QW4 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH4=, QW6 ,QW6 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH5=, QW8 ,QW8 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH6=, QW10,QW10 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH7=, QW12,QW12 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH8=, QW14,QW14 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH9=, QW16,QW16 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH10=,QW18,QW18 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH11=,QW20,QW20 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH12=,QW22,QW22 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH13=,QW24,QW24 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH14=,QW26,QW26 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH15=,QW28,QW28 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH16=,QW30,QW30 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH17=,QW32,QW32 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 CH18=,QW34,QW34 , ,2 ,0.000000,1.000000,INT ,0 ,0.000,0.000,0.000,0.000,0 PLC中将需要采集的信号集中到某一个DB块,PDA可通过iso方式直接读取它,效率更高,组态更简洁,示例参见S7-400_iso(MAC).zip。 如果不能采集数据,可将网卡停用再启用,然后进行数据采集。 10.2 PLC主动发送数据 数据源类型为54,注意字节交换,采样周期10ms数量级。采用ISO transport connection通讯协议,S7-400通过FC50一个连接最多发送8192字节。 示例参见S7-400_isoSendToPDA.zip。 |
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设备测试 故障诊断 质量分析 |
毫秒级的数据采样 高效实时数据压缩 捕捉信号瞬时突变 |
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