3M C3266PW User's Guide download pdf (Page 47)

3M™ Multi-Touch Chassis Display User Guide 47

3M Touch Systems, Inc. Proprietary Information – TSD-39373B

Use Z to determine that you are communicating with the controller or to make sure that a

utility is communicating with the controller. Using this command does not affect the

controller’s current operating parameters.

Output Identity

Syntax: <SOH>OI<CR>

Response: <SOH>ADXxxx<CR>

where:

D = Two ASCII characters that describe the type of 3M Touch Systems controller.

xxx = This is a unique identifier not necessarily the actual firmware revision number.

Description: Returns a 6-character identifier, which describes the controller type and the firmware

version number.

3M Touch Systems recommends that the host system issue a Reset command whenever

the host system is powered on and is attempting to establish communication with the

controller.

The amount of time needed to execute a Reset command is typically 500 milliseconds

with a defined maximum of 2000 milliseconds. Therefore, the application program

should wait and be sure it receives the command response before issuing another

command to the controller following the reset.

Restore Defaults

Syntax: <SOH>RD<CR>

Response: <SOH>0<CR> Positive response.

Description: Returns to the factory default operating parameters. The Restore Defaults command

copies the 3M Touch Systems factory default parameters from ROM to the non-volatile

memory (NOVRAM) and then executes a Reset command.

The following table lists the factory defaults for the PX controller. The Restore Defaults

command is useful in situations where inadvertent commands to the controller have

rendered the sensor inoperative.

Table 19. PX Factory Default Settings

Operating Parameter Default

Baud Rate 115,200

Serial Communication Settings N, 8, 1

Data Format Format Tablet Multi-Touch

Operating Mode Mode Stream

Return to Factory Calibration Yes

Note: After you issue a Restore Defaults command, you must recalibrate your sensor.

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3M C3266PW User's Guide Page 47