Enhancement: suport ascii mode

[bretagne-peiqi]

I am interested in adding ascii mode support for device-modbus-go.

If it is helpful for our project. I am going to make a pull request. Thanks.

[cloudxxx8]

@bretagne-peiqi is there any standard way to intepret ascii in Modbus?

[bretagne-peiqi]

Hi, thanks for your reply. What do you mean by standard way to interpret ascii mode, interpret meas decode or somethings else as the links: http://www.simplymodbus.ca/ASCII.htm

I saw you are using modbus library which implements tcp rtu&ascii modes.
for the driver part (device service), I have not seen different processes for these three modes.

we are interested in this, waiting from your response :)

[cloudxxx8]

@bretagne-peiqi Thanks, you are right. It's in the standard. Please feel free to open a PR in master branch, and we will help review the code.