functionhexdecimalcodesys

How to convert Hex to Dec in Codesys ST?

I'm using Codesys V3 ST language I'm writing a code to communicate motor controller unit which uses CANOpen protocol I want to use CAN raw messages to communicate

I put CAN bus messages bytes in an array -- myDataFF82 : ARRAY [0..7] OF BYTE; //(incoming message)

Then I put together first byte and second byte

raw := UserVarGlobal.myDataFF82[1] ; 
raw1 := UserVarGlobal.myDataFF82[0] ;
raw2 := MEM.PackBytesToWord(byHighByte:=raw1 , byLowByte:=raw); //real message is '01F4' which is Hex

At this point I want to convert '01F4' into Decimal value ('01F4' Hex is '500' in Dec)

I don't see any function to do that in Codesys Can you help?

Thank you in advance

Solution

  • You do not convert HEX to DEC because there is no conversion, it is the same set of bits. It is only a matter of representation. You can see the number as a HEX or as a DEC

    a := 16#01F4;
b := 500;

    You assign equal value to a and b, but you write this value as HEX or DEC.