EXII-7720SC 3M TOUCH SYSTEMS, EXII-7720SC Datasheet - Page 29

• Manufacturer Part Number: EXII-7720SC
• Manufacturer: 3M TOUCH SYSTEMS

Specifications of EXII-7720SC

• Operating Temperature (min): -40C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Rad Hardened: No
• Lead Free Status / Rohs Status: Compliant

EX II Controller Communications
Examples:
Response:
Reset
Syntax:
Description:
Response:
The process of changing the parameters takes three steps:
•
•
•
<SOH>PN813<CR>
<SOH>PN81<CR>
Caution:
communication must occur at the new values. It is possible to set the parameters to values
that prevent future communication with the controller.
<SOH>0<CR>
<SOH>R<CR>
Initializes the hardware and the firmware, causes the controller to stop sending data, and
recalculates the environmental conditions (for example, stray and offset values). The
Reset command also cancels the Format Raw, Calibrate Raw, and Calibrate Extended
commands and returns the controller to normal operation.
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 ranges from 225 milliseconds to
800 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.
<SOH>0<CR>
The host system must first communicate with the controller using a matched set of
parameters.
The Parameter Set command is issued with the new parameters to the controller. The
new settings take effect immediately.
The host system must be changed to the new parameters in order to communicate
with the controller again.
The settings are immediately written to NOVRAM, and all future
3M Touch Systems Proprietary Information
Sets the serial line to no parity, eight data bits,
one stop bit, and 4800 baud.
Sets the parity, data bits, and stop bits; leaves the baud at its
previous value.
Positive response.
Positive response.
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