I'm writing a driver using the 3964r Protocol and i'm having trouble finding good documentation. I've crawled all over google and havn't been able to uncover much useful information.
I'm using the commands AD and ED (in bytes 3 and 4) to read and write data blocks. However I also need to read and write analog values to word addresses larger then 255. These are all even addresses going from 2.0 to 214.0 The AD command has a single byte for word address and this only gets me to 255. I then discovered an AX and EX command however i cannot find any information on the packet structure for these commands. I have a 3964r protocol engine from Adontec. It has a function for this but the packet still only has one byte for the word address (this is the 6th byte). Is there something i'm missing? Would the device recieving this command handle the word address differently for an AX command? (on another note i don't yet have the hardware to test any of my assumptions, which is why i'm asking here)
AD Command Packet(in hex):
00 00 41 44 01 01 00 0A FF FF (Bytes: 1&2 Signature, 3 Command, 4 Address Mode, 5 Device Address, 6 Word Address, 7&8 number of words, 9&10 Coordination bytes)AX Command Packet??
I welcome any advice. Thanks in advance,
Bill