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The Bachmann MC205 is a high-performance, modular central processing unit (CPU) designed as the "brain" of Bachmann’s M1 automation system, responsible for executing control logic, managing I/O data, coordinating communication with peripheral modules, and enabling real-time industrial automation. Unlike compact all-in-one PLCs (e.g., Bachmann WT205), the MC205 is a dedicated CPU module that integrates with the M1 backplane (e.g., BS206) to support scalable configurations—allowing users to add I/O modules (DO216, ISI202), communication modules (CS200/N, EM203), and motion control modules (ACR222/2) based on application needs.
Engineered for demanding industrial environments, the MC205 delivers deterministic performance, robust data processing, and comprehensive programming flexibility, making it ideal for medium-to-large-scale automation tasks: process control (chemical, water treatment), discrete manufacturing (automotive assembly, packaging), and critical infrastructure (rail auxiliary systems, power distribution). It serves as the core for systems requiring synchronized control of multiple subsystems, high-speed data exchange, and reliable operation in harsh conditions.
- Dual-Core Processing Power: The 800 MHz ARM Cortex-A9 dual-core CPU enables parallel execution of control logic and data processing—for example, one core runs real-time motion control algorithms, while the other handles I/O data acquisition and communication. This eliminates bottlenecks in complex systems (e.g., a CNC machine with 4 axes + 128 digital I/O points).
- Deterministic Cycle Times: Configurable logic cycle times as low as <1ms ensure consistent execution of time-sensitive tasks (e.g., emergency stop response, synchronized axis motion). The MC205 prioritizes critical control loops over non-essential tasks (e.g., data logging), guaranteeing reliability in safety-critical applications.
- M1 Backplane Compatibility: As a modular CPU, the MC205 connects to the M1 backplane (e.g., BS206) to support up to 16 peripheral modules per backplane (expandable via daisy-chained backplanes). This scalability allows users to start with a basic configuration (1 CPU + 2 I/O modules) and expand to complex systems (1 CPU + 4 communication modules + 8 I/O modules) without replacing the CPU.
- Flexible I/O Handling: Supports a wide range of M1 I/O modules, including digital outputs (DO216), encoder inputs (ISI202), and analog modules (e.g., PTAI216 temperature input). The CPU automatically detects connected modules via the backplane, simplifying commissioning and reducing configuration errors.
- IEC 61131-3 Compliance: Supports all five standard IEC 61131-3 programming languages, catering to diverse user expertise—electrical technicians may prefer Ladder Logic (LD), while software engineers can use Structured Text (ST) for complex algorithms. Bachmann’s M1 Configurator software provides a graphical interface for code development, simulation, and debugging.
- Advanced Debugging Tools: The MC205 enables real-time variable monitoring, breakpoint setting, and cycle time analysis via M1 Configurator. For example, users can track the value of a "tank_level" variable during runtime or identify which function block is causing a delayed cycle time—speeding up troubleshooting.
- Critical Data Retention: Optional lithium battery backup preserves RAM data (e.g., process setpoints, batch counts) during power outages, preventing data loss and ensuring seamless system restart once power is restored. The 5-year battery lifespan reduces maintenance frequency.
- Safety Integration: Compatible with Bachmann’s M1 safety modules (e.g., SM201) to implement safety-related control functions (e.g., emergency stop, overtravel protection) in compliance with EN ISO 13849-1 (SIL 2). The CPU enforces safety logic independently of standard control loops, mitigating risk of unsafe operation.
- On-Board & Expandable Communication: The MC205 includes on-board RS-232 (local programming), USB (file transfer), and Ethernet (remote access) ports. For industrial protocols (CANopen, Modbus TCP/IP, FASTBUS), users can add M1 communication modules (CS200/N, FS222/N) via the backplane—enabling integration with SCADA systems, HMIs, and cloud platforms (e.g., Bachmann M1 Cloud).
- Remote Monitoring & Maintenance: The Ethernet port supports secure remote access (via VPN or HTTPS) for real-time system monitoring, firmware updates, and troubleshooting. This reduces the need for on-site visits to remote locations (e.g., a water treatment plant in a rural area) and minimizes downtime.
- Chemical Process Control: Manages a medium-scale chemical reactor system with 64 digital I/O points (valve control, pump status) and 32 analog I/O points (temperature, pressure, flow). The MC205 executes PID control loops for reactor temperature, coordinates with a CS200/N CANopen module to communicate with a VFD, and logs process data to a microSD card for compliance reporting.
- Automotive Assembly Line: Controls a 4-station assembly cell with 128 digital I/O points (sensor inputs, actuator outputs) and 2 ACR222/2 motion modules (robotic arm coordination). The dual-core CPU runs real-time motion logic (cycle time: 0.5ms) on one core and I/O monitoring on the other, ensuring synchronized part assembly with sub-millimeter accuracy.
- Rail Auxiliary System: Acts as the core for a train’s HVAC and lighting control system. The MC205 connects to an FS222/N FASTBUS module to communicate with the train’s TCMS (master), processes input from 32 temperature/humidity sensors, and controls 16 HVAC dampers—with -25°C ~ +60°C temperature tolerance ensuring reliability in extreme weather.
- Water Treatment Plant: Manages a filtration system with 96 digital I/O points (valve actuation, pump control) and 16 analog I/O points (water level, pH, turbidity). The MC205 executes sequential control logic (SFC) for filtration cycles, sends data to a SCADA system via an EM203 Ethernet module, and retains critical process data (e.g., filter backwash times) during power outages.
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Please make an inquiry for more models
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