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 TIA Portal (Botu STEP7) IO functionality for rapid PLC networking.
| 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 |
Download Manual
| 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
-
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.
-
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.
-
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.
FAQ
Q: How does the EBT3003 handle logic level discrepancies when interfacing with a standard 5V RS485 transceiver?
A: The EBT3003 logic controller operates strictly on a 3.3V DC power supply and logic level. When interfacing with traditional 5V RS485 or RS232 transceivers, a dedicated logic level converter or a digital isolation chip must be implemented on the TX/RX lines. This is necessary to prevent overvoltage breakdown of the LQFP100 package pins and to guarantee signal integrity during high-speed UART transmission.
Q: What are the hardware layout considerations for maintaining stability at the maximum 3.9Mbps UART baud rate?
A: To prevent packet loss at 3.9Mbps, the PCB layout must adhere to high-speed digital design principles. Trace parasitic capacitance on the UART lines must be minimized, and impedance matching should be strictly calculated. Furthermore, developers must place adequate decoupling capacitors (typically 0.1uF alongside 10uF) directly adjacent to the 3.3V VCC pins to effectively filter out high-frequency switching noise from the power plane.
Q: During Botu STEP7 configuration, how is the internal memory map structured for Modbus Master polling?
A: In the TIA Portal environment, the EBT3003 requires its specific GSDML file for hardware catalog registration. Once imported, the PROFINET cyclic data exchange engine maps the external Modbus slave registers directly into the PLC's input/output image memory. Engineers allocate specific byte offsets in the hardware configuration to align seamlessly with the Modbus RTU holding registers, ensuring deterministic polling cycles without requiring custom communication function blocks.
Q: Is external line termination required on the PROFINET network side of the EBT3003 implementation?
A: The EBT3003 functions as a protocol processing MCU and interfaces with a standard Ethernet PHY chip via an MII or RMII bus, rather than connecting directly to an RJ45 magnetic jack. Therefore, network-side termination resistors and 50-ohm trace impedance matching are handled exclusively at the PHY layer layout. This architectural separation isolates the EBT3003 logic levels from external line-level voltage transients.
