CAN-PCI-02 Copley Controls
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The CAN-PCI-02 is a PCI card accessory produced by Copley Controls and is part of the Copley Controls Accessories series. It features two channels and supports CAN 2.0A and 2.0B protocols with galvanic isolation. The card offers a maximum CAN bit rate of 1 Mbit/s and is equipped with a Sub-D 9M connector, supporting both Windows and Linux operating systems.
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Product Description:
The CAN-PCI-02 is a CAN bus interface card manufactured by Copley Controls for controllers and drives in the Copley Controls Accessories series. Installed in a host PC, the board provides a dedicated hardware path between a PCI backplane and field-level CAN networks. This connection allows automation software to exchange real-time data with motion amplifiers, I/O nodes, and safety devices without relying on a separate external adapter.
The board connects to the motherboard through a 32-bit PCI 2.2 connector, and its edge circuitry accepts 3.3/5 V signaling for compatibility with legacy and newer PC platforms. A microcontroller on the card handles low-level bus arbitration, while fast dual-port RAM buffers messages and supports bus speeds up to 1 Mbit/s. Communication conforms to CAN 2.0A and 2.0B, allowing the network to use both standard and extended identifiers. The CAN path is galvanically isolated, preventing ground loops between the host PC and distributed field devices. A jumper-selectable 121 Ω terminator supports installation at the end of a network segment. Philips TJA1050TD transceivers sit behind the isolation barrier, translating logic levels and driving the differential signal pair on the field cable.
The interface provides two independent network ports, with each port available through a Sub-D 9M connector that follows the CAN DS-102 pinout. The transceivers comply with ISO 11898, supporting communication with compatible third-party devices. For event ordering, the card appends time tags with 1 µs resolution, which supports accurate sequencing in deterministic control applications. The dual-port architecture exposes the receive FIFO to the host while the microcontroller continues capturing incoming frames, reducing the risk of lost packets during heavy network traffic. The two-layer board measures 142 × 80 mm and accommodates both isolated channels within its compact footprint. Compatible drivers are available for Windows and Linux, covering common operating systems used in industrial PCs. The card can therefore connect separate CAN segments while allowing the host application to process traffic from both ports concurrently.
