[Communication Interface]:RS485
[Operating Voltage]:DC 8-28V
[Communication protocol]:Modbus RTU
[Installation method]:Clip-on + Embedded
[Size]:60.3*28.8*15mm
[Product weight]:16±5g
[Introduction]:EID051-143 is an RS485 serial port controlled LED digital tube that supports the Modbus RTU protocol. It can display various ASCII characters, positive and negative numbers, floating-point numbers, and supports brightness adjustment, blinking, customizable startup display content, and other functions. Furthermore, this Modbus digital tube is easy to install and features a built-in switching power supply circuit with reverse polarity protection and overcurrent protection. It uses an industrial-grade chip and provides lightning, surge, static electricity, overvoltage, and overcurrent protection.
| serial number | Pins | illustrate | Remark |
| 1 | DC8-28V “+” | Power "+" | 0.8-inch digital tubes recommend RVV 2*0.75 wire; 0.36, 0.40, 0.56-inch digital tubes come with single-ended electronic wire connections |
| 2 | DC8-28V “-” | Power supply "-", ground | |
| 3 | B- | RS485 corresponding to B | |
| 4 | A+ | RS485 corresponding to A | |
| 5 | button | Has the function of saving and restoring to factory settings | Short press to save, long press to restore to factory settings |