Omron NT20S User Manual

137
Touch Switches
Section 4-7
4-7-1 Functions of Touch Switches
Touch switches are created using rectangular elements measuring 19 dots hori-
zontally by 19 dots vertically. A touch switch can comprise more than one touch
switch element. Up to 72 touch switches (12 horizontally x 6 vertically) can be reg-
istered on one screen.
19 dots
A touch switch can comprise more
than one touch switch element.
19 dots
PC
When the touch switch is
pressed, bit information
is sent to the PC.
(Host link/NT link)
When the touch switch is pressed,
the touch switch number or bit
information is sent to the Host.
(RS-232C)
Host
S Functions of touch switches
Touch switches can have the following functions:
- PC notification function
NT20S-ST121-EV3/ST122-V1
:Host link/NT link/C200H direct communication (page 183)
NT20S-ST128 :RS-232C (page 212)
- Screen switch (standalone) function (page 138)
- System key function (page 139)
- Numeral setting function
NT20S-ST121-EV3/ST122-V1
:Host link/NT link/C200H direct communication (page 188)
NT20S-ST128 :RS-232C (page 212)
Touch Switch Attributes The following attributes can be set for touch switches.
S Display frame
The area that will respond as a touch switch is displayed in the form of a frame,
as shown in the table below. One of three types of frame - standard, 3-D, and
none - can be selected.
Type of Display
Frame
Switch OFF Switch ON
Standard
3-D
None

Omron NT20S Specifications

General

Brand	Omron
Model	NT20S
Category	Touch terminals
Language	English