The Ebyte EBT3003 is an industrial-grade PROFINET to Serial/Modbus integration chip featuring a 3.3V operating voltage, an ultra-fast UART baud rate of up to 3.9Mbps, and seamless GSDML configuration in Siemens TIA Portal for plug-and-play IO device networking on factory automation floors.
| Parameter | EBT3003 | EBT3003-TB |
|---|---|---|
| Appearance | Profinet core chip | Profinet chip test backplane |
| Model | EBT3003 | EBT3003-TB |
| Category | Profinet Chip | Profinet Chip Test Backplane |
| Operating voltage | DC 3.3V | DC 5V |
| Package Dimensions | 14×14×1.5mm | 100×40×17mm |
| Parameter | Specification |
|---|---|
| Model | EBT3003 |
| Brand | CDEBYTE |
| Core Protocol | Standard PROFINET (RT) |
| Primary Functions | PROFINET to Modbus Master/Slave, UART Pass-through, IO Functionality |
| Operating Voltage | 3.3V DC |
| UART Baud Rate | 2400 bps to 3.9M bps |
| Package Type | LQFP100 |
| Dimensions | 14mm x 14mm |
| Integration | Siemens TIA Portal (Botu STEP7) via GSDML |
Application Scenarios
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Legacy Sensor Integration in Smart Manufacturing: For facilities upgrading to Siemens S7-1200/1500 PLCs, the EBT3003 bridges legacy Modbus RTU sensors directly into the PROFINET ecosystem. By utilizing Botu STEP7 integration, integrators bypass complex coding, dramatically reducing deployment time for automated assembly lines.
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High-Speed CNC Motor Control Synchronization: Utilizing the chip's ultra-high UART baud rate of up to 3.9Mbps, automated guided vehicles (AGVs) and CNC machine systems achieve real-time, low-latency communication. This eliminates UART bottlenecking, ensuring perfectly synchronized drive and motor feedback loops.
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Energy-Efficient Distributed Data Acquisition: In expansive petrochemical or water treatment plants, the chip's low 3.3V operating voltage and compact LQFP100 footprint allow it to be embedded into highly constrained, passively cooled remote terminal units (RTUs), ensuring robust PROFINET IO data gathering over large industrial networks.

















Practical Application Scenarios
Scenario 1: High-Speed Field Sensor Data Aggregation to Siemens PLCs
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Regional Industry Pain Points: Modern European and North American assembly lines require massive arrays of sensors (laser distance, barcode scanners, and torque controllers) to report real-time telemetry back to a Siemens S7-1500 controller. Standard 115,200 bps serial-to-PROFINET gateways introduce a heavy communication bottleneck, delaying critical feedback loops and degrading plant efficiency.
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Ebyte Technical Solution: By embedding the EBT3003 chip directly into their sensor terminal designs, OEM engineers can unlock serial speeds up to 3.9Mbps. The EBT3003 converts high-frequency serial streams instantly into standard PROFINET IO packets. Using its GSDML file, the system integrates seamlessly with the Siemens TIA Portal environment, enabling sub-millisecond data updates directly to the PLC process image.
Scenario 2: Compact Integration in Vacuum Gripper and Actuator Control Boards
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Regional Industry Pain Points: Robotics manufacturers designing end-of-arm-tooling (EOAT) suffer from strict space and weight budgets. They cannot afford to mount bulky DIN-rail PROFINET-to-Modbus gateways on the moving robotic arm. A heavy gateway limits acceleration, increases joint wear, and complicates cable routing.
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Ebyte Technical Solution: The EBT3003 is a micro-sized, surface-mount integration chip operating at 3.3V. Hardware designers can lay out the EBT3003 directly onto the actuator's control PCB. It translates the local Modbus control commands of the micro-valves and stepper motors into native PROFINET Ethernet communications, providing a weightless, highly integrated, and extremely reliable on-board solution.
Scenario 3: Heavy-Duty CNC Machine Tool Auxiliary Controller Integration
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Regional Industry Pain Points: Large-scale CNC systems operate in environments saturated with severe high-frequency electromagnetic noise from massive spindle motors. Auxiliary cooling pumps, oil-mist collectors, and safety doors require continuous coordination via the PROFINET bus. Poorly shielded or unintegrated gateway cables lead to CRC packet errors and unexpected machine halts.
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Ebyte Technical Solution: The industrial-grade EBT3003 chip operates stably from -40 to +85 degrees Celsius. Embedded directly within the CNC auxiliary control card’s PCB, it bypasses the need for external, noise-prone RS485 communication cables by translating the logic on-board. This design minimizes the loop area vulnerable to EMI, allowing clean, high-speed PROFINET communications back to the main control panel.
2. FAQ Section
Q1: Does the EBT3003 require an external microprocessor to run the PROFINET stack?
A1: No. The EBT3003 is an integrated protocol conversion chip that handles the entire complex PROFINET IO stack internally. Your host controller only needs to communicate with the EBT3003 via its UART serial interface using standard Modbus RTU or transparent commands, greatly reducing your local MCU's processing overhead and firmware complexity.
Q2: Is the EBT3003 serial port compatible with standard 5V logic levels?
A2: The EBT3003 is designed for 3.3V operating systems. Its UART interface pins are not 5V tolerant. If you are connecting the chip's high-speed serial lines directly to a 5V microcontroller or legacy RS232/RS485 transceiver chips, you must implement level-shifting transceivers or resistor voltage dividers to prevent logic gate damage.
Q3: How do we configure the EBT3003 inside Siemens TIA Portal?
A3: Ebyte provides a dedicated, validated GSDML configuration file for the EBT3003. When designing or deploying your system, you simply import this file into Siemens TIA Portal (STEP7). This allows the engineering software to easily identify the EBT3003 as a standard IO device, allowing you to configure input and output data lengths via drag-and-drop.
Q4: What is the maximum data throughput and baud rate supported by this chip?
A4: The EBT3003 supports ultra-high-speed serial communications with UART baud rates scaling up to 3.9 Mbps. This performance is ideal for bandwidth-intensive industrial applications such as fast-loop sensor monitoring and complex motor motion coordination where standard 115.2kbps gateways fail to keep up.