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3
ures and bar graphs can also be created and displayed. Marks (16 dots x 16
dots) can also be created with the NT20M/NT600M Support Tool and dis-
played.
Up to 64 touch switch inputs can be registered per screen for Terminals with
a touch panel (DT).
Drip-proof, Oil-proof Panel
The NT20M PTs (except for those connected to the NT20M-FK210) have a
drip-proof front panel structure when the dust cover is mounted to protect the
display area and the key input area. For protection against oil spray, the
front-panel sheets and moulded parts use oil-resistant materials. In addition,
the NT2000M PTs have a completely water-proof structure when the panel is
mounted.
Messages and numbers transferred from the host can be displayed at pro-
grammed locations. In addition, numbers from touch panel and function key
inputs can be transferred back to the host.
Five types of Host Interface Unit enable general RS-232C and RS-422 com-
munications, special-purpose SYSMAC BUS (Wired) communications,
C200H Host Interface communications to the C200H, and Host Link direct
connection communications.
System Configuration
NT-series Terminals have common communications protocol and peripheral
devices. Select the Terminal you need based on screen size, memory capac-
ity, and host interface.
Program Reusability
Programs for communicating with Programmable Controllers are upwardly
compatible so the program can easily be reused when adding functions.
Screens can be changed on-site, without requiring instructions from the host.
At the time when the screens are created by the Support Tool in advance,
screen-changing functions can be allocated to touch switches or function
keys, thereby making it possible to easily change to any screen.
Online Transfer Capability
When an RS-232C or RS-422 Interface Unit is mounted to the Host Interface
Unit, screen data can be changed by means of commands from the host.
Direct connection is a function whereby host data areas can be made to di-
rectly correspond to PT operations. Ordinarily, operating instructions to the
PT and inputs from the PT are carried out by means of command execution
at the host. The direct connection function eliminates the need for such host
commands and programming, thereby greatly reducing the size and com-
plexity of the host program. Direct connection is possible for PTs with touch
panels when a Host Link Interface Unit is mounted. In addition, the NT20M-
ZASAT-EV4 Support Tool and the NT20M-SMR31-E are required.
1-3
NT-series Terminology
The following are definitions for the names of items in this manual related to
the NT Series of Programmable Terminal and SYSMAC C-series Program-
mable Controllers.
Abbreviations
The following abbreviations are used in the text.
Input Functions
Two-way Communications
Host Interface
Communications
Stand-alone Capability
Direct Connection
NT-series Terminology
Section 1-3
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