Not able to get Modbus RTU data

Using Arduino Project Guidance
1

I am trying to get data from Energy meter, Data format - RS485 Modbus RTU.

Boards used: Arduino Uno compatible Freeduino
RS485+RTC Datalogger shield got from Research design lab.

I tried Modbus RTU Master sample code, attached here.

Baud Rate : 9600
Energy meter ID : 17
Holding Register Address : 214

Whenever the energy meter receives any request, the COM indicator in the meter blinks.

I uploaded the said code and did not get any response.

Kindly post your suggestions to solve my issue.

Thanks in advance.

modbus_rtu_master.txt (14.4 KB)

2

hello

im working on the same project ...just started out...did you get any progress on the communication between energy meter and arduino??

Emmanuel