CM202 Bachmann CAN Communication Module

CM202 Bachmann CAN Communication Module | New & Original Stock

Availability: 99 left in stock

Bachmann CM202 CAN Communication Module The Bachmann CM202 (00012160-00), also cataloged as the CM202 CAN Communication Module, operates as a...

SKU: CM202

Manufacturer: Bachmann
Product No.: CM202
Product Type: CAN Communication Modules
Product Origin: Germany
Payment:T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Bachmann CM202 CAN Communication Module

The Bachmann CM202 (00012160-00), also cataloged as the CM202 CAN Communication Module, operates as a dedicated hardware component for 2-channel CAN communication within Bachmann M1 Automation System networks.

Hardware Specifications

Parameter	Specification
Model	CM202 (Item No. 00012160-00)
Brand	Bachmann Electronic
Origin	Austria
Weight	0.2 kg
Dimensions	Standard M1 module width
Operating Temp	-30 to +60 deg C
Power Consumption	System backplane dependent
Interface Channels	2 Independent CAN interfaces
Supported Protocols	CANopen (Master/Slave), DeviceNet, J1939, CAN Layer 2
Baud Rate	10 kbit/s up to 1 Mbit/s (Software configurable)
Galvanic Isolation	500 V (between CAN channels and system bus)
CANopen Capacity	Up to 128 TxPDO and 128 RxPDO per network

Deterministic Network Routing and Backplane Integration

The module interfaces directly with the host controller via high-velocity backplane bus communication pathways, allowing real-time data sync across the physical network. Bus interface logic handles deterministic network transfers for J1939, DeviceNet, and CANopen profiles without incurring processing jitter. It scales I/O density requirements by transmitting up to 128 TxPDO and 128 RxPDO parameters per network channel, maintaining firmware flash compatibility across standard M1 controller variations.

Frequently Asked Questions

Q: What are the firmware flash compatibility requirements when replacing a legacy module variant?

A: The hardware requires the M1 system software version to support the corresponding device driver profiles configured via the Bachmann SolutionCenter. Ensure the controller firmware matches or exceeds the module revision level.

Q: How is the backplane bus current load affected when installing multiple modules?

A: Each interface draws power directly from the 5 V and 24 V internal backplane rails. Total current calculations must sum the module requirements against the maximum rating of the M1 power supply card to prevent voltage sag.

Q: What is the maximum physical isolation voltage rating between the two separate CAN interfaces?

A: Galvanic isolation blocks potential differences up to 500 V between the individual CAN channels and the internal system backplane components.

Field Installation Guidelines

Bus Connection Sequence: Power down the entire M1 backplane rack before inserting or removing the module from the bus slots to avoid data disruption or electrical damage.
Termination Resistor Placement: Install standard 120 Ohm termination resistors at the physical endpoints of each CAN bus segment to suppress signal reflections.
Shield Grounding Matrix: Connect the CAN cable shield directly to the functional earth ground terminal rail at the cabinet entry bulkhead using low-impedance ground clamps.
Baud Rate Constraints: Match network cable segment lengths to the configured baud rates, keeping total distances within 40 meters when operating at the maximum 1 Mbit/s velocity.

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