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

• Manufacturer Part Number: EXII-7720SC
• Description: CONTROLLER EX II SER CAPACITIVE
• Manufacturer: 3M
• Series: MicroTouch™ Controller EXr

Specifications of EXII-7720SC

• Accessory Type: Touch Screen - Controller
• Operating Supply Voltage: 5 VDC to 12 VDC
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 40 C
• Connector Type: RS232
• Rohs Compliant: Yes
• For Use With/related Products: Touch Screen Capacitive
• For Use With: 3M5754 - TOUCH SCREEN CAPACITIVE 12.31"3M5752 - TOUCH SCREEN CAPACITIVE 19.75"3M5750 - TOUCH SCREEN CAPACITIVE 20.65"3M5748 - TOUCH SCREEN CAPACITIVE 17.54"3M5747 - TOUCH SCREEN CAPACITIVE 6.71"3M5745 - TOUCH SCREEN CAPACITIVE 15.68"3M5744 - TOUCH SCREEN CAPACITIVE 10.83"3M5527 - TOUCH SCREEN CAPACITIVE 31.80"3M5526 - TOUCH SCREEN CAPACITIVE 20.65"3M5525 - TOUCH SCREEN CAPACITIVE 19.75"3M5524 - TOUCH SCREEN CAPACITIVE 17.54"3M5523 - TOUCH SCREEN CAPACITIVE 15.68"3M5522 - TOUCH SCREEN CAPACITIVE 12.31"3M5521 - TOUCH SCREEN CAPACITIVE 10.83"3M5520 - TOUCH SCREEN CAPACITIVE 8.75"3M5519 - TOUCH SCREEN CAPACITIVE 6.71"
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 3M5540

3M™ MicroTouch™ Controller EX Serial Reference Guide
Output Identity
Syntax:
Description:
Response:
Parameter Set
Syntax:
Description:
Examples:
<SOH>OI<CR>
Returns a 6-character random identifier, which describes the controller type and the
firmware version number.
<SOH>CcXxxx<CR>
where:
Cc
Xxxx = Four ASCII characters that indicate a build identifier.
<SOH>Ppds[b]<CR>
where:
p
d
s
b
Lets you adjust the communication parameters (parity, data bits, and stop bits) of the
controller. Optionally, you can change the communication rate by appending an
additional character to the command string. Upon execution of the Parameter Set
command, the controller automatically stores the new settings, the current operating
mode, and the current data format in NOVRAM.
The communication parameters of the host system must match the present settings of the
controller when the command is given for it to be accepted and the changes implemented.
The process of changing the parameters takes three steps:
•
•
•
<SOH>PN813<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.
= Parity type
= Number of data bits (7 or 8).
= Number of stop bits (1 or 2)
= Communication rate
= Two ASCII characters that describe the type of 3M™ MicroTouch™
N = No parity
O = Odd parity
E = Even parity
1 = 19200 baud
2 =
3 =
controller.
3M Touch Systems, Inc. Proprietary Information
9600 baud
4800 baud
Sets the serial line to no parity, eight data bits,
one stop bit, and 4800 baud.
4 = 2400 baud
5 = 1200 baud
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