Omron NT21 Setup Manual

1-2SectionComparison between NT20S and NT21
4
1-2 Comparison between NT20S and NT21
Item NT20S NT21
NT Support Tool used NT-ZJCAT1-EV4 or NT-ZA3AT-EV2 NT-ZJCAT1-EV4.6
Effective display area 112 x 56 mm (horizontal x vertical) 117 x 63 mm (horizontal x vertical)
Number of screen dots (resolution) 256 x 128 dots (horizontal x vertical) 260 x 140 dots (horizontal x vertical)
Number of touch switches 12 x 6 dots (horizontal x vertical) 13 x 7 dots (horizontal x vertical)
DIP switch settings On rear of Unit None (software settings)
Use of Memory Unit Not possible Possible (to transfer system program
data and screen data)
RS-232C interface Connector (9-pin) also used as port for
screen data transfer
- Port A connector (also used for
screen data transfer, 9-pin)
- Port B connector (for host
communications only, 9-pin)
Backlight life 10,000 h min. 50,000 h min.
Replacement backlight NT20S-CFL01 Not replaceable.
Battery backup Not possible Possible
*1
(numeral/character string memory
tables, history data, recipe data, and
clock data)
System program data Pre-installed (cannot be changed) The system installer and system pro-
gram data are transferred from the NT
Support Tool.
1:N NT Links Standard Standard or high-speed
Memory Links Not possible*2 Possible
Number of user-registered screens Maximum of 500 Maximum of 3999
Screen data capacity*3
(User program memory)
96 KB 512 KB
Numeral and character string
memory tables
Maximum of 128 entries Maximum of 2,000 entries
Bit memory table None Maximum of 1000 bits
Mathematical table None 256 entries max.
Calculations can be executed
automatically in the PT.
Image data None Maximum of 4,095 (224 in
NT20S-compatible mode)
Library data None Maximum of 12,288 (896 in
NT20S-compatible mode)
Fixed graphics (rectangles, poly-
gons, arcs, sectors, tiling)
None 65,535 per screen including all fixed
display elements
Image library display None 256 per screen max.
Analog meters None 50 per screen max.
Trend graphs None 1 per screen max.
Broken-line graphs None 1 per screen max.
Alarm list/history None 4 per screen max.
Recipes None 1 per screen max.
Windows None Maximum of 3
Method for storing numeric values
(numeral memory data and PT Sta-
tus Control Area)
Fixed as BCD (binary coded decimal) Selectable from BCD (binary coded
decimal) or binary
PT Status Control Area size 4 words 5 words (partial change of contents) (4
words in NT20S-compatible mode)

Omron NT21 Specifications

General

Brand	Omron
Model	NT21
Category	Touch terminals
Language	English