I have a project with modbus. ( it is my first modbus device).
Customer want Modbus RTU and some Holding register has "ascii value"
Holding register have 16 bit and will use / set "2 ASCII char" per register.
ok but it is the right way? if not
what is the data format for read/write ASCII value in RTU mode ?
the value the customer want is some "ID name" ++++
MODBUS RTU mode fast choice.
ASCII value fast choice.
Make a no standard protocol way can be my choice but if it is a "right way" I will see.