User's Manual

User Guide

WherePort III User Guide

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The password can be set using the ****:XPW **** command. Changes to the password

will take effect immediately. The changes affect only the current session unless the host

sends the WherePort an execute command (****:EXE). Only after receiving an execute

command will the new password be written into flash memory and read on power up.

Without the execute command, the password will return to its previous value if the

WherePort is powered down.

7.3 Command Execution

The following commands require the execute command (****:EXE) before they will be

saved in flash memory and sent to the magnetic field generator:

MSG, PWR, PHS, WID, TID, RSP, CNT, INT, TRG, DAT, CMW, CMC, XPW

A query command will return the newly entered values, even though the execute

command has not been sent. The WherePort will not be operating under these values until

the execute command is sent.

7.4 Tag Responses to Commands

Unless noted otherwise, all commands will produce one of the following responses by the

WhereTag

ACK message OK

NAK message not recognized or bad format

NAK2 message parameter out of range

There are two other possible acknowledgments that are used primarily by data

commands. Their use will be noted in the command summary.

NAK3 The tag is busy and will not blink data

BSY…ACK The tag is busy with a WherePort blink. The command

will be responded to when the tag completes the

WherePort blink and is not busy, at which time a ACK

response will be sent.

SSS n Response to a query where SSS is the command and n

is the parameter.

All tag response strings consist of a carriage return / line feed, the actual response string,

another carriage return / line feed, and are followed by the > prompt character.

{CR}{LF} ACK{CR}{LF}>