It is a central processing unit (CPU) module in the Bachmann M1 automation system.

What type of microprocessor is integrated inside ME203/CN?

It integrates an 80386 EX industrial-grade processor.

What is the integrated volatile memory size of ME203/CN?

It contains 8 MB of integrated DRAM memory.

How much retentive memory does ME203/CN have?

It has 512 KB of battery-backed SRAM.

Do you offer global delivery services?

Yes. We ship globally, and we are able to quickly deliver parts globally to any corner of the world. Unless otherwise specified, we will ship your order via (DHL). We can also ship through FedEx, UPS, and TNT. We can also use your account.

How many parts do you have in stock?

We have an extensive stock base consisting of ten thousands of new and discontinued automation parts including those from leading manufacturers such as:Control Systems (DCS, PLC, CNC) ,Panel Controllers,HMI and Display Panels,Drives,Encoders and Resolvers,Power Supplies. If you are unable to find what you are looking for then don’t panic.

ME203/CNW

Name: ME203/CNW
Brand: bachmann
SKU: ME203/CNW

CPU module

Product image is representative; revision or series may vary. Contact us to request a specific version.

Product Describe：

CPU module 386EX (33MHz)
M1 system controller
8 MB DRAM memory
512 KB backed SRAM

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Technical specifications for ME203/CNW

Manufacturer:

bachmann
Product Category:

PLC Systems
Spare Part Number:

ME203/CNW
Estimated shipping dimensions:

5.4x11.8x5.4cm
Weight:

0.1 kg
Tariff Code:

8537101190
Counliy of origin:

Austria
Current Consumption from Backplane:

5 V DC at 0.55 A typical
Power Dissipation:

2.75 W typical
System Memory (DRAM):

8 MB volatile memory for program execution
Retentive Memory (SRAM):

512 KB NVRAM backed by an internal lithium battery
Module Width:

1 standard slot width
Storage Temperature:

-40 °C to +85 °C
Relative Humidity:

5% to 95% non-condensing
Hardware Enclosure Rating:

IP20

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Information

Overview Manuals Common Applications Product Precautions

The ME203/CN is a central processing unit module designed for the M1 modular automation control system. The hardware occupies a single-width slot on the M1 system backplane and integrates an industrial-grade 80386 EX microprocessor.

CAN Bus-Includes 1 integrated CAN fieldbus interface for connecting decentralized devices
Network Interface-Includes 1 integrated Ethernet port for network configuration, remote communication, and routing functions
Serial Interface-Includes a standard RS232 serial communication interface for local configuration or peripheral connections

The module contains 8 MB of volatile DRAM memory for system operations and 512 KB of battery-backed SRAM retentive memory dedicated to data preservation during power interruptions. A front-accessible PC memory card slot is integrated into the module faceplate to house external program media ranging from 8 MB to 64 MB. The suffix designation specifies a native hardware configuration that includes an integrated CAN fieldbus interface alongside serial RS232 communication lines.

This CPU module operates on the VxWorks real-time operating system and is configured using the Bachmann SolutionCenter software platform. System errors, operational modes, and communication interface activities are indicated locally by a row of LED indicators situated on the front panel.

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.

Bachmann ME203/CNW CPU module Manuals, Datasheets, Drivers, Link

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.

Wind Power Generation

Deployed inside the main control cabinet of wind turbines to acquire position sensor data from pitch and yaw systems via the integrated CAN bus and execute control logic.

Rail Transportation

Operates within the Train Control and Management System (TCMS) to coordinate logic interlocking of HVAC, braking, and lighting subsystems via serial and bus interfaces.

Hydroelectric Power Generation

Acts as the logic core of hydro-turbine governor control systems, processing sensor variables such as unit speed and oil pressure to output adjustment commands.

Steel and Metallurgical Equipment

Controls blast furnace feeding systems and converter auxiliary equipment, utilizing digital modules on the passive backplane to execute material handling logic.

Plastics and Rubber Extrusion

Receives analog inputs from multiple temperature sensors in heating zones and outputs pulse signals to solid-state relays for constant temperature control.

Petrochemical Auxiliary Systems

Operates within non-safety interlocking distributed control boxes for wastewater reuse or refinery peripheral utilities, providing logic calculation and data forwarding for field I/O modules.

During the use of ME203/CN, ensure that the ambient temperature remains between 0 °C and 60 °C without condensation while the enclosure meets a protection rating above IP20. Main programs and configuration data must be loaded and backed up using a specific PC memory card inserted into the slot.

When the main power is disconnected, the internal lithium battery must be inspected periodically and replaced timely to prevent data loss within the real-time clock (RTC) and the 512 KB retentive SRAM.

Technical notes

This component is applied as the main logic controller within industrial machinery sectors, specifically wind turbine generator systems, maritime automation, and utility infrastructure networks.

FAQ View All FAQ

What is ME203/CN?

It is a central processing unit (CPU) module in the Bachmann M1 automation system.
What type of microprocessor is integrated inside ME203/CN?

It integrates an 80386 EX industrial-grade processor.
What is the integrated volatile memory size of ME203/CN?

It contains 8 MB of integrated DRAM memory.

How much retentive memory does ME203/CN have?

It has 512 KB of battery-backed SRAM.
Do you offer global delivery services?

Yes. We ship globally, and we are able to quickly deliver parts globally to any corner of the world. Unless otherwise specified, we will ship your order via (DHL). We can also ship through FedEx, UPS, and TNT. We can also use your account.
How many parts do you have in stock?

We have an extensive stock base consisting of ten thousands of new and discontinued automation parts including those from leading manufacturers such as:Control Systems (DCS, PLC, CNC) ,Panel Controllers,HMI and Display Panels,Drives,Encoders and Resolvers,Power Supplies. If you are unable to find what you are looking for then don’t panic.

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