Bachmann MX220/2G MX200 CPU Processor Module

Configured for deterministic real-time control and high-speed multi-tasking execution in Bachmann M1 Automation System architectures, the Bachmann MX220/2G (MX220 CPU Processor Module) provides direct physical/electrical execution. The module coordinates real-time field bus transactions, serial data streams, and internal backplane bus operations across attached I/O cards. Operating via integrated Ethernet, CANbus, and serial communication channels, the fanless unit updates system variables and executes IEC 61131-3 logic without active cooling components.

Hardware Specifications

Backplane Bus Communication Velocity & Network Determinism

The Bachmann MX220/2G drives backplane bus communication velocity across the internal rack to achieve microsecond-level synchronization across local and expansion sub-modules. Hardware-level bus arbitration ensures jitter-free processing of motion loops and high-density I/O scans. Integrated dual 10/100 Mbit/s Ethernet ports and an isolated CAN channel support deterministic fieldbus protocols. Robust firmware flash compatibility permits continuous kernel updates and application deployment without interrupting non-volatile memory structures within the 512 KB NVRAM buffer.

Frequently Asked Questions

Q: How does the MX220/2G supply power to adjacent I/O modules installed on the backplane?

A: The module features an integrated 24 VDC power supply converter that converts primary 18-34 VDC power to regulated backplane rails, providing up to +5 VDC (1700 mA), +15 VDC (30 mA), and -15 VDC (30 mA) directly to attached modules.

Q: What operational safeguards are present on the 24 VDC input terminal block?

A: The primary 24 VDC power input circuit incorporates internal reverse polarity protection and overvoltage clamping to prevent hardware failure in the event of field wiring inversion or supply line transients.

Field Installation Guidelines

Mount the MX220/2G vertically into the designated master slot of the M1 base rack, pushing until the module connects firmly with the backplane header. Secure the top and bottom retaining screws to establish chassis ground continuity and lock the assembly against mechanical vibration. Maintain a minimum clearance of 50 mm above and below the housing to facilitate natural convection airflow through the thermal cooling fins.

Connect 24 VDC power lines using wire cross-sections sized according to maximum current draw, ensuring polarity alignment. Connect Ethernet and isolated CAN bus cables using shielded twisted-pair media, terminating cable shields at the panel grounding bus. Set the front-mounted 16-bit rotary switches to the assigned system address prior to powering on the unit.