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About this Manual:
This manual describes the basic functions and operation procedures of the NT-series programmable ter-
minal NT20S, its operations when connected to a PC or a Host, and includes the sections described be-
low.
Please read this manual carefully and be sure you understand the information provided before attempting
to install and operate the NT-series programmable terminal NT20S.
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 sec-
tions before attempting any of the procedures or operations given.
Section 1 describes the operation functions, system configuration, and the direct connection function of
the NT20S.
Section 2 describes the NT20S hardware settings, its installation in an operation panel, its connection to
the Host, etc.
Section 3 describes the procedure before operating the NT20S, and useful functions when operating it.
Also describes how to perform an operation check.
Section 4 describes the functions of the NT20S when it is connected to a Host.
Section 5 describes how to operate the NT20S when the host link/NT link is used for communication.
Read this chapter only when using the NT20S-ST121
j
/ST161
j
/ST122
j
.
Section 6 describes how to operate the NT20S when the RS-232C interface is used for communication.
Read this chapter only when using the NT20S-ST128
j
/ST168.
Section 7 describes the procedures to follow when the system does not operate correctly, and the proce-
dure for routine maintenance of the NT20S.
APPENDIX describes the specifications and the method for making connecting cables, and includes an
area list for the PC.
Summary of Contents for NT20S
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