1. Dual-mode operation, adaptable to different scenarios - Modbus-RTU slave mode: Enables remote, multi-node industrial field data acquisition via RS-485 bus connection. - USB HID Keyboard Mode: Plug and play when connected to a computer. It is recognized as a standard keyboard device without requiring drivers. Data or judgment results (OK/NG) can be directly sent to any text box in Excel, Word, etc. by collecting key presses. 2. Highly flexible Modbus connectivity (key feature) - Standard Modbus-RTU protocol, physical layer RS-485, differential transmission for interference immunity, suitable for complex electromagnetic environments. - Slave addresses 2~247 can be configured online, supporting single host and multiple slave network configurations. One host can poll up to 246 data collection nodes. - A 120Ω terminating resistor jumper cap is reserved, which can be flexibly enabled at the beginning and end nodes of the bus to optimize the quality of long-distance communication. - Fixed baud rate of 115200bps, 8 data bits, 1 stop bit, no parity, CRC16 checksum ensures data reliability. 3. Rich and diverse interfaces: The data output port supports RS-485 and USB analog keyboard , and is compatible with various host computers, PLCs or PC systems. 4. Widely compatible measuring tool acquisition box can be connected to various capacitive grating sensors such as calipers, micrometers, and digital displays.
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