Prüfsummen und andere Verrechnungen
- http://crccalc.com
- http://www.sunshine2k.de/coding/javascript/crc/crc_js.html
- http://www.scadacore.com/field-tools/programming-calculators/online-checksum-calculator/
- http://www.scadacore.com/field-tools/programming-calculators/online-hex-converter/
- http://www.asciitohex.com
- http://www.mobilefish.com/services/big_number/big_number.php
- http://www.rapidtables.com/convert/number/ascii-to-hex.htm
http://ascii.cl