mitsubishi fx3u conversion

I am working on an fx3u mitsubishi PLC were I am reading the upc code from a label and storing the values as follows in ascii format:

D101 - 01
D102 - 65
D103 - 06
D104 - 22
D105 - 34
D106 - 13

I'd like to convert the above ascii values into a single decimal register as follows

D200 - 16506223413

How can I do this using the FX3U instruction set?

That number is too large to fit in a 16 bit register or even a 32 bit register we need to know what you are going to do with a decimal number so large?.
Most bar cobe handling uses comparison of the ascii chars or send to a database etc, so no need to convert to a decimal

parky said:

That number is too large to fit in a 16 bit register or even a 32 bit register we need to know what you are going to do with a decimal number so large?.
Most bar cobe handling uses comparison of the ascii chars or send to a database etc, so no need to convert to a decimal

Click to expand...

I will be comparing the value read by the barcode scanner to the value of the upc code that it is suppose to read... in other words the value read by the scanner will get compared to a constant if the vales are equal the machine will continue. if they are different the machine will stop.

Can you not just split the constant down into some other registers in the same format that the barcode scans in then compare all the registers ?

Constant:

D301 - 01
D302 - 65
D303 - 06
D304 - 22
D305 - 34
D306 - 13

Scanned:

D101 - 01
D102 - 65
D103 - 06
D104 - 22
D105 - 34
D106 - 13

IF D101 = D301 AND D102 = D302 etc. etc. THEN BARCODE CHECK = TRUE

You could do a CMP this compares a 16 bit word i.e. D100
( CMP D100 D200 M100)
if D100 are the same as D200 then M101 will be on (M100 is on if D100 < D200 M102 is on if D100 > D200
The compare instruction uses 3 bits for the compare starting at the head address in this case M100