User's Manual

QTI Page 9 of 15 Revision: D
Form #: 30Z0250 Effective Date: 1 August 2010
ID CODE (YYY)
The unit ID code consists of three (3) decimal characters, but only EMIDS messages use all three.
MIDS, TRSS and REMBASS are limited to ID codes 000-063. EMIDS uses 000-999.
STATUS CODE (ZZ)
Status Codes depend upon the message format. MIDS has no status code, and these characters will
always be 00. EMIDS status codes are listed in the previous table.
MCDT Serial Commands:
Note: It is recommended that when using a processor to control the MCDT that the format
described under Checksum
be used. This format helps ensure data integrity by greatly reducing
communication errors and is more robust for machine to machine (M2M) applications.
 Valid commands will return the command and the argument followed by the word “OK”.
 Invalid commands return “SYNTAX ERROR”.
 Invalid command arguments will return “ERR” at the end of the command and argument.
 Carriage Return represents end of line and causes the line to be processed.
 If command is given with “#” at the beginning, then a two digit checksum is expected before
<CR>. Returned string has a checksum if checksum sent.
 Checksum is two’s compliment of the command string (everything before checksum).
 A space is always included between the command and the argument: “CHR <space> 101 <CR>”.
Command List
? … Brings up the help menu
The current help menu (without checksums) appears as follows:
Commands List:
HELP/?: Show this menu
CHR: Get/Set rcv Chan
CHT: Get/Set xmit Chan
CMB: Clear message buffer
CRF: Get receive channel in Hz
CTF: Get transmit channel in Hz
MSG: Get rcvd msg
NEW: Get new messages
PSH: Get/Set push mode
PWR: Get/Set xmt pwr level
RCV: Get/Set receive mode
RSS: Get receive signal strength
RST: Reset
SAV: Save Current Parameters
SID: Get/Set the RS485 ID
SLP: Enter Sleep mode
SRN: Get unit serial num
TMP: Read Temp
TXM: Xmit msg, type, ID, stat
VER: Show versions