BACHMANN MC205 CPU Module
Configured for deterministic real-time control and process execution in Bachmann M1 Automation Systems, the BACHMANN MC205 (MC205 CPU Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MC205 |
| Brand | BACHMANN |
| Origin | Austria |
| Weight | 0.55 kg (1.21 lbs) |
| Dimensions | 110 mm x 53 mm x 118 mm |
| Operating Temp | -30 deg C to +60 deg C |
| Power Consumption | 10 W typical (+5 VDC via M1 backplane) |
| Processor | Intel Atom E620 single-core (500 MHz to 600 MHz) |
| System Memory | 1 GB DRAM / DDR2 RAM |
| Remanent Memory | 512 kB NVRAM |
| Internal Storage | 64 MB Flash (40 MB free for application) / 2 GB pSLC Flash |
| Removable Storage | 1x CFast Type I slot (> 8 GB, up to 256 GB tested) |
| Communication Ports | 2x Ethernet 10/100/1000 Base-T (IEEE 1588), 1x RS232, 1x RS232/422/485, 1x USB Host, 1x USB Device |
| System Features | Hardware watchdog, battery-backed RTC, 3x status LEDs, rotary hexadecimal switches |
| System Isolation | IP20, Class III electrical safety, conformal coating |
Deterministic Control & Backplane Communication
The central processing unit operates on the VxWorks real-time operating system with Bachmann system extensions, interfacing directly with the backplane bus communication velocity Licences framework. High-speed process image transfer enables dynamic I/O density scaling across backplane modules without control cycle degradation. Network-wide frame alignment occurs through hardware-based IEEE 1588 clock synchronization across Ethernet networks and integrated SERCOS, CAN, and backplane I/O buses. Integrated firmware flash compatibility validation enforces real-time synchronization integrity across distributed automation topologies.
Frequently Asked Questions
Q: How is the hardware CPU node address configured on the module?
A: Field engineers set the unique CPU ID directly via physical rotary hexadecimal switches located on the front panel of the hardware housing.
Q: What mechanisms preserve critical program variables during power loss?
A: Real-time process values instantly copy to the non-volatile 512 kB NVRAM memory array, while the system real-time clock maintains timekeeping using an onboard battery circuit.
Q: Are the integrated serial interfaces individually software-configurable?
A: The module contains one dedicated RS232 interface and a second serial port that engineers can configure via software for RS232, RS422, or RS485 physical signal levels.
Field Installation Guidelines
Mount the processor module vertically onto a standard 35 mm DIN rail inside an IP54-rated control cabinet to allow proper thermal air circulation through the passive heatsink structure. De-energize all primary 24 VDC power lines supplying the backplane rack prior to inserting or removing the module. Connect network drops using double-shielded twisted-pair Ethernet cables with metal-shielded RJ45 plugs. Bond all cable drain wires directly to the main functional earth (FE) bus bar using low-impedance grounding clamps to prevent high-frequency field interference.
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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