Process Data Acquisition – CHPDA -- 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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30 Bechhoff
Realtime Ethernet
The effectual sample period may be less than 0.25ms, The data source type is 36. 30.1
TwinCAT2
Define a data type for acquired data. Move acquiring data to a defined variable. The example program can be found in RT-Ethernet_TwinCAT2.zip. 30.2 TwinCAT3If you want to simulate running on a computer, please turn off the VT (Virtualization Technology) virtualization function in the BIOS, otherwise an error will occur. In TwinCAT3, the defined structure TPDA is added to External Types so that the TPDA type can be selected when sending data. The example program can be found in RT-Ethernet_TwinCAT3.zip. Establish a connection and select EtherCAT Automation Protocol [Network Variables] under the EtherCAT communication protocol. Add item Pub Var 1 and TPDA type network variables under Box. Link the variable VarData to the defined global variable GVL.PDA(PDA AT %Q*:TPDA). |
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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
PDAClient