Omron NT20, User Manual

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Lamps, Touch Switches, Numeral Setting Section 6-5
Specify the display status as 3 (all not lit) to turn off all the lamps and touch
switches. In this case, specify the lamp or touch switch number to any number
in the permitted range.
!Caution
The display attributes set with the Support Tool determine if lamps #0 to #31
light continuously or flash. The display status set with this command is
ignored.
Lamp and Touch Switch Display Status Enquiry
Format
Description
Enquires the status of a lamp or touch switch specified by its address.
The NT20 returns the Lamp and Touch Switch Display Status Response
Command (refer to
Lamp and Touch Switch Display Status Response below)
to report the display status.
Lamp and Touch Switch Display Status Response
Format
Description
The NT20 returns this command to report the lamp or touch switch number
display status to the Host in response to the Lamp and Touch Switch Display
Status Enquiry Command (refer to
Lamp and Touch Switch Display Status
Enquiry ) sent from the Host.
Note Lamps 0 to 31 are reported as being lit when in the “flashing inverse” status.
6-5-2 Notification of Numeral Setting Input and Touch Switch Status
The following describes the commands for notifying the host when numeral
setting is performed (i.e., when the contents of a numeral memory table entry
are changed by pressing a touch switch) or when a touch switch is pressed,
when operating the NT20.
When a numerical value is input by numeral setting, the NT20 sends a Num-
ber Input Notify Command to the host. The command sent differs depending
on whether a 4-digit or 8-digit number is input.
1B
[ESC]
n
1
* *
n
2
* * 52
R
n
1
n
2
: Lamp or touch switch # (2-digit hexadecimal)
000 to FF
H
(0 to 255)
1B
[ESC]
n
1
* *
n
2
* *
m
1
* * 53
S
m
1
: Display status
0 (30
H
): Not lit (normal display)
1 (31
H
): Lit
2 (32
H
): Flashing inverse
n
1
n
2
: Lamp or touch switch # (2-digit hexadecimal)
0 to FF
H
(0 to 255)