Introduction; Nt2S Operation Overview - Omron NT2S-SF121B-E - QUICK START V1.03 Quick Start Manual

1. INTRODUCTION

NT2ST is used with NT2S-SF121B-E and NT2S-SF122B-E products. These products are
compact but highly functional operator interfaces and NT2ST is designed to be extremely
flexible to take advantage of this functionality.
The bright LED back light and 2 x 16 character screen provide a highly visible display for
showing fixed or scrolling text messages, bit controlled text, and numerical data.
Special screen types exist for simplifying data entry. Navigation can be achieved using
programmed function keys, configuring a LINK screen, or chaining message screens that change
on a timer. Six function keys provide many options for operator control and data entry.
Function keys can be programmed locally for each screen, or globally for the project, to perform
tasks which include momentary, set on, set off, and toggle bit control, as well as numerous
numeric value control tasks.
The Windows based program, NT2ST, provides many tools to achieve flexible solutions. Follow
this quick start guide to gain an overall understanding of the layout of this software tool.
This document assumes the user is familiar with the operation of programs within Windows and
basic PLC concepts. Consult a technical resource for answers to basic PLC questions.

2. NT2S OPERATION OVERVIEW

The screens displayed on the NT2S are stored in the program memory of the unit. The NT2S
displays the screen number currently stored in the Screen Trigger Register (STR), which is a
PLC memory location. The NT2S remembers the last three STR values and will display them in
order when the current screen is finished displaying.
Numeric data is displayed by placing fields on a screen that reference PLC memory locations.
Up to six numeric fields can be placed on a single screen. Bit status can be displayed on the
screen using bit controlled text.
Navigation from screen to screen can be handled in several ways:
Function keys can be programmed to change the STR. F1 can increment the STR by one,
and F2 can decrement the STR by 1. Function keys can also change the STR to a specified
number.
Link screens can be created to navigate a series of screens specified by the user. A link
screen is a parent screen which displays a series of child screens. Link screens save
programming time because it automatically defaults to F1 being a NEXT key, and F2 being a
PREV key. Programmer does not have to set these functions up on each screen. Call the link
screen number in the STR to activate the link screen.
Chained screens can be used to automatically cycle through a list of screens. When creating a
screen, specify to what screen number it is linked. During operation, the NT2S will continue
to change screens at the rate specified in the MIN TIME field of each screen. The screens
will loop until a STR number is called for a screen not in the chain.
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