Libraries overview
The TwinCAT 2 automation software provides various libraries for the BC9191 and BC9191-0100 (see Beckhoff Information System). These libraries are also used for the Bus Terminal Controllers (Bus Couplers with PLC functionality) of the BC9050, BC9020, BC9120 and BX9000 series.
Download and documentation
If libraries are not installed by default, perform a download, extract the library from the .zip file and copy it into the TwinCAT directory TwinCAT\PLC\LIB. KS2000KS2000KS2000
- Standard.lbx (installed by default in TwinCAT 2.11)
- TcBaseBCxx50.lbx (installed by default in TwinCAT 2.11)
Documentation: https://infosys.beckhoff.com/content/1033/bc9xx0/3740793995.html - TcSystemBCxx50.lbx (installed by default in TwinCAT 2.11)
Documentation: https://infosys.beckhoff.com/content/1033/bc9xx0/3740791947.html - TcBaseBX9000.lbx
Documentation: https://infosys.beckhoff.com/content/1033/bx9000/3207183627.html
Download: https://infosys.beckhoff.com/content/1033/bx9000/Resources/zip/3207318539.zip - TcSystemBX9000.lbx
Documentation: https://infosys.beckhoff.com/content/1033/bx9000/3207213707.html
Download: https://infosys.beckhoff.com/content/1033/bx9000/Resources/zip/3207385995.zip
Further libraries with useful functions or communication blocks can also be found in the Beckhoff Information System:
https://infosys.beckhoff.com/content/1033/tcinfosys/12706086667.html
When using the libraries, firmware 3.1 or higher is recommended for the BC9191 and BC9191-0100.
 | Use the library that matches the firmware Always use the latest libraries in conjunction with the latest BC firmware. If you update the firmware of your Bus Terminal Controller, please also update the libraries. Copy the new libraries into the LIB folder, remove them from your project and re-insert them. |