Thanks John
I will try that, Yes the look down returns the value the meter sends out 14 byte hexadecimal string and need to convert this into more human figure, This is where I got the data from when I used PDS
http://perfec.to/ut60e/
I have the byte sequence..... 20,35,47,5d,69,75,85,9b
The first digit of each byte (high nibble) is the sequence number so for the purposes of the calculation, it can be discarded. We the combine the second digits from two consecutive numbers (the lower nibbles) to form a byte. So we now have...
05, 7D, 97, 5B
Using the look-up table from the link I posted we get...
05...1
7D...0
97...7 (Note that the msb of this byte is cleared so we look up 17 not 97 The fact that the msb is set indicates the decimal point.)
5B...2
So the voltage is 10.72 volts and so on, The PDS codes displays the mode and readings from the meter
Thanks
Steve