Download the communication protocol document (AIBUS and MODBUS) and manual of convertor.
AI-MODBUS Gateway v2.0 This gateway provide RS485 to RS485 or RS485 to RS232 conversion, from device to computer/PLC. AI-MODBUS V2.pdf Adobe Acrobat document [402.4 KB]
Communication Protocol V8.0 This document contains AIBUS and MODBUS parameters addresses and calculation method. Applicable for instrument with firmware version 8. ProtocolAI8.pdf Adobe Acrobat document [565.2 KB]
Communication Protocol V7.0 This document contains AIBUS parameters addresses and calculation method.
Applicable for instrument with firmware version 7. AIBUSCommProtocolV70.pdf Adobe Acrobat document [71.3 KB]
Sample Communication Code - VB VB.txt Text document [1.1 KB]
AI-485U RS485 to USB Convertor Driver for Windows RS485 (client instrument) to USB (computer) convertor. No external power is required. AI-485U_USB_RS485_Convertor_Driver.zip Compressed archive in ZIP format [389.2 KB]