Need Help For MODBUS RS485

Dear Team,

I need your support for my project Can you guide me
I m using ELMEASURE ELECTRICAL METER,I need to take a reading form that meter through RS485 ,i getting Result from that meter through MY Arduino CODE, here I attached my code
but its is hex format i dont know how to convert in FLOAT32 format
i using your software for checking its working properly can you help me for this.
bcz i struggle last 30days for this.

Please Help ME.

sketch_may28a.ino (1.4 KB)