Today is...
Tuesday, May 21, 2019
Welcome to, the global online
community of automation professionals.
Featured Video...
Featured Video
A demonstration of EtherCAT control of linear motors using the CTC EtherCAT master.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive
How to do Firmware Update Through MODBUS?
A problem about working on .mot file and Rs485.

Hello!I'm new here.
I got a meter and its source code few days ago. After I compiled my project, I got a .mot (SREC format) file. However, I don't know how to write a program that can send .mot file to the meter through RS485. Can anybody solve my problem? Thanks a lot.

I have updated firmware on dozens of process field devices and I'm not sure what protocol was used to transfer the firmware file because it didn't matter; the device vendor provided the software to make the file transfer and provided the firmware file. I just went through the motions. File transfers were over various hardware buses: RS-232, RS-485, or Ethernet.

Whomever supplies a device's firmware file should be able to tell you which software/hardware bus is used to execute a firmware update.