Serial port specification
Serial Port Hardware
•
RS-232
◦
DB-9 Female
•
RS-485
◦
Screw Terminal (4 connections)
◦
RJ-45
Serial Port Communication Protocol
•
RS-485 asynchronous serial communication
•
Two Wire Half Duplex
•
9600 bps, 8 bits, 1 stop bit, no parity
•
no flow control
Command set specification
Command Format
•
All commands are in ASCII characters format except the first DEVICE ADDRESS
byte
•
DEVICE ADDRESS is an 8 bit hexadecimal character assigned by the 8 bit DIP
switch on this device
•
All commands begin with DEVICE ADDRESS and "*" (asterisk) character and end
with <CR> character (0D hexadecimal)
•
All commands RETURN with some feedback begin with DEVICE ADDRESS and "*"
(asterisk) character and and end with <CR> character (0D hexadecimal)
•
If a command produces an error or structured with incorrect syntax, the system
will return with "<ADDR>?<CR>" characters
•
Multiple commands require a delay of 500ms between commands
COMMAND
RETURN
XO-XOi-X86-DR-X86T MANUAL - RS485 Manual - v3.2
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