Regarding modbus ascii message frame

R

Thread Starter

red

How do I fill a sending packet of modbus ascii frame? Say slave = 2, FunctionCode = 3, Startingregister = 4, No_OfRegisters = 2
int i = 0;
BYTE byBuff[50];
byBuff[i++] = ? ;
byBuff[i++] = ? ;
byBuff[i++] = ?;
....etc...
 
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