Process Data Acquisition – PLC -- 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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14
MPI/DP variable access
Data source type is 3, Swap byte should be attended. PDA time base is above 10ms level. Please setup Prodave6 and its license, PDA needs them. Data area IB[0..65535], QB[0..65535], MB[0..65535], DB[1..65535].DBB[0..32767] can be collected. Maximum communication rate is 12Mbps. supports multiple PLC and multiple MPI/DP cards such as CP 5611. "Set PG / PC interface" set the access path, add S7ONLINE1 to access point of the application, set interface parameter assignment as PC adapter (MPI), PC adapter (PROFIBUS), CP 5611 (MPI) or CP 5611 (PROFIBUS), set the rate of communication. PDA configuration Config.csv sample is as follows: [1000,2CH,10.000ms,,3S,PLC1,,3,,,,,,S7ONLINE,2] No,
Name,Adr/note,Unit,Len,Offset
,Gain
,Type,ALM, CH1=, ,MD0 , ,4 ,0.000000,1.000000,REAL,0 ,0.000,0.000,0.000,0.000,0 , CH2=, ,MD4 , ,4 ,0.000000,1.000000,REAL,0 ,0.000,0.000,0.000,0.000,0 , [2000,2CH,10.000ms,,3S,PLC2,,3,,,,,,S7ONLINE,3] No,
Name,Adr/note,Unit,Len,Offset
,Gain
,Type,ALM, CH1=, ,MD0 , ,4 ,0.000000,1.000000,REAL,0 ,0.000,0.000,0.000,0.000,0 , CH2=, ,MD4 , ,4 ,0.000000,1.000000,REAL,0 ,0.000,0.000,0.000,0.000,0 , Typical application network diagram is as bellow. Concentrate the signals needed
to be collected into certain DB block in PLC, PDA may directly read it by MPI/DP,
it is more efficient and concise. |
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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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