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4
Abbreviation
Term
Meaning
PT
Programmable Terminal
Refers to an OMRON NT-series Programmable Terminal.
PC
Programmable
Controller
Refers to an OMRON SYSMAC C-series or CV-series Programmable
Controller, or programmable controllers manufactured by other companies.
I/F
interface
A communications device that connects the Programmable Terminal with
peripheral devices.
I/O
input/output
Refers to PT and PC inputs and outputs.
SYSMAC Terminology
Terminology
Explanation
SYSMAC
A generic name for OMRON’s Programmable Controllers.
Host Link System
A system employing SYSMAC C-series Host Link Units used to create a communications bus
between PCs, between PCs and PTs, etc.
SYSMAC BUS
A remote I/O network created between SYSMAC C-series PCs and input/output devices.
C200H
An OMRON SYSMAC C-series Programmable Controller.
NT-series Manuals
The NT20M/NT2000M Series and NT600M Series are covered in the four
manuals described below.
Name of Manual
Contents
Manual No.
NT20M/NT2000M Operation
Manual
This manual provides specifications, functions, and operating
instructions for the NT20M and NT2000M Programmable Terminals.
V001
NT600M Operation Manual
This manual provides specifications, functions, and operating
instructions for NT600M Programmable Terminals.
V002
NT-series Host Interface Unit
Operation Manual
This manual covers the commands, controls, and communications
specifications for operating the NT20M and the NT600M. Refer to
this manual when programming host computer communications.
V003
NT20M/NT600M Support Tool
Operation Manual
This manual covers methods for creating screens, including screen
data preparation, switches, lights, and alarms.
V004
NT-series Host Interface Unit
Direct Connection Operation
Manual
This manual covers the Direct Connection feature which has been
added to the Host Interface Unit.
V015
NT-series RS-232C/RS-422
Interface Unit Operation Manual
This manual covers the commands, controls, and communications
specifications for operating the NT20M and the NT600M with the
RS-232C/RS-422 Interface Unit. Refer to this manual when
programming host computer communications.
V016
1-4
Models
1-4-1
NT20M Programmable Terminals
The various NT20M PT models are shown in the table below. Several of
these models employ two-color backlights. The two-color backlight incorpo-
rates red and white lights, one of which is selected according to operational
requirements. The two-color backlights are replaceable, and are sold sepa-
rately.
System ROM is sold separately for all models. Select the System ROM ac-
cording to the Host Interface Unit that is mounted to the PT, as described in
Host Interface Units and Conforming System ROM on the following page.
NT20M type
Model number
Backlight
Image data memory
With touch panel (DT)
NT20M-DT121-V2
White
I/C socket:
N
f th
d l
ith i
d t
p
(
)
NT20M-DT131
White or red
None of these models come with image data
memory chips mounted. Purchase them
Without touch panel (DN)
NT20M-DN121-V2
White
memory chips mounted. Purchase them
separately, following the specifications in the
“Memory Chips” table on the following page
p
(
)
NT20M-DN131
White or red
“Memory Chips” table on the following page.
Models
Section 1-4