Shaik Hussain Ali

hello, I am getting error when i run the Vi as error code 56 RTU Data Unit.lvclass:Read ADU Packet.vi:5030001

Hello, I have have downloaded modbus library in LabVIEW and i am having this device which is 8-digital-inputs-8-digital-outputs-IO-8DIO here i don't know how to use this modbusi have made the connections with rs485 with convertor to 8-digital-inputs-8-digital-outputs-IO-8DIO. Now i want to write/read some data into the registers but i don't know how to write/read data into the respective registers can any one please help me regarding this.Am using Labview 2015 http://www.brainchild.com.tw/en/2-1752-41592/product/8-digital-inputs-8-digital-outputs-IO-8DIO-id147282.html (Datasheet is available here)