X20CS2770 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation X20CS2770 is part of the X20 Fieldbus Input Output Modules series and features 2 CAN interfaces using an SJA 1000 CAN controller. This module offers IP20 protection rating, supports a maximum bus distance of 1000 meters, and allows a max transfer rate of 1 Mbit/s. It has bus and I/O isolation, with an integrated terminating resistor and connects via a 12-pin terminal block.
Internal Product Review
The X20CS2770 is a B&R Automation fieldbus I/O module with 2 CAN interfaces and a 1 Mbit/s transfer rate. Integrated terminating resistor and bus/I/O isolation support clean, dependable network integration. A well-engineered choice for stable CAN communication in distributed control systems.
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Product Description:
B&R Automation manufactures the X20CS2770 for its X20 Fieldbus Input Output Modules series. The compact slice acts as a CAN communication head that links the system backplane to distributed sensors, valves, and drives used in packaging, material handling, and process skids. Installed alongside CPU and supply modules, it enables deterministic message exchange while maintaining mechanical consistency within the X20 rack. In industrial automation, this part reduces wiring complexity and permits decentralized control over standardized fieldbus lines.
Environmental and power-use limits determine cabinet layout. The module operates without thermal derating up to 2000 m; above that altitude, its permitted ambient temperature falls by 0.5 °C/100 m. Such provisions simplify deployment in elevated facilities. Backplane load is minimal, drawing only 0.01 W from the bus, while on-board transceivers consume 0.55 W from the internal I/O rail, minimizing heat generation. The data channel supports transfer rates up to 1 Mbit/s, matching typical sensor cycles. The module has bus-to-I/O isolation, so the field voltage is galvanically separated from logic circuits, yet there is no inter-interface isolation between the two CAN ports. A 12-pin terminal block accepts twisted-pair wiring, and an integrated terminating resistor simplifies line-end installation.
Network reach and protocol features determine application range. With a maximum bus distance of 1000 m at reduced speed, a single segment can cover large conveyor lines before requiring repeaters. Both channels are managed by the SJA 1000 CAN controller and presented as 2 independent interfaces that can be assigned to different logical networks or used for redundant paths. The housing is rated at IP20, indicating finger-safe protection for mounting inside closed panels.
