Notes Serial Cabling and setup with Digi are located in ../portserver. 
These notes are just for the LS218 Temperature monitoring controller.

The serial port defaults are: 9600, 7, 1, odd parity
Terminator are "CR LF" or "0x0d 0x0a"

In src/spex/ldog a test218 program implements a simple IO loop to enable
you to communication with the 218.

Example commands and replys 

  command: *IDN?\r\n
    reply: LSCI,MODEL218E,21EA4F,042109(CR)(LF)

  command: KRDG?\r\n
    reply: +480.00,+480.00,+480.00,+480.00,+01.000,+01.000,+01.000,+01.000(CR)(LF)