Process Data Acquisition – PDA -- Detailed
analysis of quality manage&industrial big data sources |
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56 PDA
system scheme for converter, RH furnace, LF furnace in steel plant |
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10
S7-400/300 iso(MAC address)
Wireshark needs to be installed in PDAServer computer, No other related software such as Step7 and SimaticNet can be installed, otherwise data cannot be collected normally. 10.1
By variable address
Data source type is 1, swap byte should be attended. PDA sample period is 10ms level. In S7-300, one connection can only collect a maximum of 220 bytes of continuous addresses. There is no limit to the number of S7-400 bytes, but when the S7-400 total communication data is large, it should not exceed 440 bytes. Data area IB[0..65535], QB[0..65535], MB[0..65535], DB[1..65535].DBB[0..32767] can be collected. Hardware config is below: Multi-connection may be established for more AI, the other is same as section 4.9. The config example is below for
the slot of PLC’s CPU is 3 and PDA server IP is “172.16. [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 Concentrate the signals needed to be collected into certain DB block in PLC, PDA may directly read it by iso protocol, it is more efficient and concise, the example is S7-400_iso(MAC).zip. If PDAServer status is abnormal, stop and start network adapter before you restart PDAServer. 10.2 PLC actively sends dataData source type is 1, swap byte should be attended. PDA sample period is 10ms level. The ISO transport connection communication protocol is adopted, S7-400 can send up to 8192 bytes per connection through FC50, the example is S7-400_isoSendToPDA.zip. |
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Apparatus test&Fault diagnosis&Quality analysis |
Millisecond data sampling Real-time data compression Capture signal instantaneous mutation |
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PDAServer
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