ix
About this Manual:
This
manual describes connecting the NT
-series NT21 Programmable T
erminal to a PC
(Programmable
Controller) or other host and peripheral devices and the settings required for communications and ap-
plications. It includes the sections described below.
Please
read this manual carefully and be sure you understand the information provided before attempting
to install and operate the Programmable Terminal.
Section
1
provides fundamental information about the functions and
features of the PT
s, types of connec
-
tion,
communication methods, etc. This information
will enable you to understand the applications of the
PTs.
Section
2
describes the connection methods that
are possible with the PT
s, and the functions of the parts
of PTs, as the required knowledge before connecting to the host and to the peripheral devices.
Section 3 describes the settings of the PTs and methods for connection to peripheral devices.
Section 4 describes the method for connecting to the host using the RS-232C port of the PT.
Section 5 describes the method for connecting to the host using the RS-422A/485 port of the PT.
Section
6
describes the operation of the System Menu, focusing on the procedure to start the PT
. Func
-
tions
that are convenient when using the PT and those that are useful for system maintenance are also
explained here.
Section
7
describes the action to take when errors occur in
the PT
, and how to carry out maintenance and
inspection to prevent the occurrence of errors.
The
Appendices
provide specifications,
dimensions, procedures for transporting and storing the PT
, in
-
formation
on cable preparation, information on the relationship between the system program and hard
-
ware, and product lists.
WARNING Failure to read and understand the information provided in this manual may result in
personal injury or death, damage to the product, or product failure. Please read each
section
in its entirety and be sure you understand the information provided
in the section
and related sections before attempting any of the procedures or operations given.
!