MPC270 | Bachmann Programmable Logic Controller Module

Description

The MPC270 is a Bachmann Programmable Logic Controller (PLC) Module, an industrial automation control device originating from Austria. It operates on the VXWORKS real-time operating system, supporting multi-tasking with robust memory management and interface programming capabilities. The module offers two programming modes: offline and online. In offline programming mode, a single CPU is shared by the PLC and programmer; during programming, the CPU serves only the programmer and does not control field devices, switching to field control in run mode with no programming access, reducing costs but complicating debugging. In online programming mode, separate CPUs handle field control and programming, with the host CPU managing field operations and exchanging data with the programmer within one scan cycle, enabling real-time program updates for easier debugging, ideal for medium and large-scale PLC systems. It supports five standardized programming languages compliant with the IEC61131-3 standard, including three graphical languages: Sequential Function Chart (SFC), Ladder Diagram (LD), Function Block Diagram (FBD), and two text-based languages: Instruction List (IL), Structured Text (ST). Additionally, it supports C, C++, Basic, and Java programming via dedicated compilation software, meeting special control scenario requirements. A key application is as a spare part for wind turbine systems, particularly for Dongqi wind turbines, and it is suitable for general industrial control use cases.