User's Manual

Command Result Codes

The module will issue result codes in response to processing an AT command. The

ATQn command controls if result codes are issued (ATQ0) or not issued (ATQ1). The

En command determines if the result codes and commands are echoed. Connect result

codes are controlled by the AT\Vn command. The ATVn will select numeric or verbose

result codes. The modules result codes are listed below:

Result Code Numeric Description

OK 0 The “ AT” command was accepted and processed

NO CARRIER 3 This result code means either ATS7 time has expired and

no connection was established or that a RF link has been

lost or terminated.

ERROR 4 Indicates an invalid command was issued

LINKING-A 15 The WHM900 is attempting to establish a RF wireless

data connection in Answer Mode

LINKING-O 16 The WHM900 is attempting to establish a RF wireless

data connection in Originate Mode

CONNECT RF1200 22 Link RF Data Rate is 1200bps

CONNECT RF2400 23 Link RF Data Rate is 2400bps

CONNECT RF4800 24 Link RF Data Rate is 4800bps

CONNECT RF9600 25 Link RF Data Rate is 9600bps

CONNECT RF19200 26 Link RF Data Rate is 19.2Kbps

CONNECT RF38400 27 Link RF Data Rate is 38.4Kbps

CONNECT RF76800 28 Link RF Data Rate is 78.6Kbps

CONNECT 300 31 DTE (Host Interface Speed) is 300bps

CONNECT 1200 33 DTE (Host Interface Speed) is 1200bps

CONNECT 2400 34 DTE (Host Interface Speed) is 2400bps

CONNECT 4800 35 DTE (Host Interface Speed) is 4800bps

CONNECT 9600 36 DTE (Host Interface Speed) is 9600bps

CONNECT 19200 37 DTE (Host Interface Speed) is 19200bps

CONNECT 57600 38 DTE (Host Interface Speed) is 57600bps

NO LINK 40 NO LINK indicates a failed attempt to re-establish a RF

data link. This result code will be displayed after each

failed retry. The amount of retries is controlled by the

AT18 register.

NO DTR 90 The module must have the DTR signal present to

establish a RF wireless link. If ATA or ATD commands

are issued without the DTR signal available this result

code will be displayed. (See the &D command for more

information)

ID XXX @ HOPPING N/A “ IDXXX” is %S Channel ID, “ @ HOPPING “

Frequency Hopping RF Link

ID XXX @ 9XX.XXM N/A “ IDXXX” is %S Channel ID, “ @ 9XX.XXM” is %Fn

Frequency that RF Link is using

MASTER @ 9.XX.XXM N/A MASTER is Broadcasting at “ @9XX.XXM”

SLAVE @ 9XX.XXM N/A SLAVE is listening on Frequency “ @ 9XX.XXM”

REC LEVEL IS XXX N/A Response to ATI9 command to reflect On Line Receive

Level. XXX is current Receive Level.