Woodhead PB3-PCIE-2

Core Technical Specifications

1. Bus Interface: PCI Express x1 Gen 2 standard interface, backward compatible with PCIe x4/x8/x16 slot of industrial computer mainboard
2. Communication Channel: 2 completely independent galvanically isolated fieldbus channels
3. Supported Fieldbus Protocols: Profibus DP, Modbus RTU, Modbus TCP, DeviceNet industrial bus protocols
4. Channel Isolation Level: Each communication channel is isolated from the PCIe mainboard logic circuit with 2500VAC dielectric withstand voltage, isolating industrial field high voltage interference
5. Operating Temperature Range: -20°C to +70°C continuous industrial cabinet operation; -40°C to +85°C storage temperature
6. Power Consumption: Maximum 7W power drawn from the PCIe slot power rail of industrial computer mainboard
7. System Compatibility: Windows 10 IoT Enterprise, Windows Server industrial control versions, Linux Ubuntu Industrial, Linux CentOS embedded industrial operating systems
8. Mechanical Form Factor: Standard full-height half-length PCIe expansion card, standard metal baffle matching industrial computer chassis rear panel

Functional Features

• Dual independent isolated communication channel architecture, two channels run fieldbus communication tasks without mutual signal interference, support simultaneous connection of two different types of fieldbus equipment at the same time
• High-performance dedicated fieldbus processing chip is integrated on the card, independent of the industrial computer CPU to complete protocol conversion, signal filtering and data caching work, greatly reducing the CPU resource occupation of the industrial control host
• Built-in large-capacity data buffer storage, support high-speed continuous uploading of field equipment real-time data, the maximum data single-frame transmission delay is controlled within 1ms, meeting the real-time data collection requirements of high-speed production lines
• Comprehensive channel fault diagnosis function, real-time monitoring communication cable open circuit, short circuit, bus terminal resistance abnormal, remote equipment disconnection and other faults, upload fault code and fault location information to industrial control host software in real time
• Hot plug driver support, after installing the official Woodhead industrial driver software, the card supports hot swapping of PCIe slots under the premise of industrial computer power-on without restarting the host to recover communication function
• Metal shielding full wrapping design for the whole card, effectively shielding external electromagnetic radiation interference such as frequency converters, high-power motors and welding equipment in industrial workshops
• Front panel LED status indicator group, independent power indicator, channel communication running indicator and channel fault alarm indicator for each communication channel, convenient for maintenance personnel to quickly judge channel operating status on site
• Official supporting configuration software provides visual graphical interface, support one-click configuration of fieldbus communication parameters, bus station address, data transmission cycle and fault alarm threshold, support offline parameter saving and one-click batch import to multiple communication cards

Application Scenarios

• Automobile assembly workshop industrial control host fieldbus data collection, connecting production line PLC and distributed I/O sensor modules
• Metallurgical steel plant rolling mill industrial computer real-time monitoring system, collecting temperature, pressure and speed sensor data through Profibus DP bus
• New energy lithium battery production line industrial control host communication expansion, connecting Modbus RTU temperature control modules and DeviceNet conveying equipment controllers
• Water treatment plant central monitoring industrial computer, realizing data interaction with multi-channel remote water pump PLC and flow sensor equipment
• Intelligent warehouse automated stereoscopic warehouse industrial control host, connecting AGV car controllers and cargo position detection sensors through dual fieldbus channels
• Thermal power plant auxiliary equipment monitoring industrial computer, collecting fan, water pump and valve position feedback data of boiler auxiliary system

Material Composition & Structural Characteristics

1. PCB Substrate: Double-sided industrial FR4 printed circuit board, full-board tin-lead-free gold-plated wiring contact surfaces, each communication channel is divided into independent isolation areas by isolation slots on the PCB to eliminate cross-channel interference.
2. Core Electronic Components: Dedicated fieldbus protocol processing chip, high-speed PCIe signal transmission chip, 2500VAC optocoupler isolation components, multi-layer metal shielding cover, high-temperature solid-state capacitors and low-distortion signal resistors.
3. External Interface Hardware: Two industrial-grade 9-pin D-SUB male connectors fixed on the metal rear baffle of the card, used for fieldbus communication cable wiring; metal fixed screws for PCIe slot installation are matched with the card baffle.
4. Mechanical Structure: Full-height half-length standard PCIe expansion card size, the entire circuit board is covered by a stamped aluminum alloy metal shielding cover to block external electromagnetic interference. The metal rear baffle is equipped with dust-proof rubber sealing rings for D-SUB connectors to prevent workshop dust and water vapor from entering the connector terminals. Independent passive small aluminum heat sinks are attached to high-power bus processing chips for heat dissipation.