Functions Of The Nt20 - Omron NT20S-ST121B-EV3 User Manual

NT20 is a new programmable terminal (PT) which incorporates a host interface unit and two RS-232C interface units in a
programmable terminal body. It can be easily installed and used. This section gives the operation examples and
characteristics of the NT20 so that you will understand the applications of the NT20.
1-1 Role and Operation of NT20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1-1 Operations of NT20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2 Functions of NT20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-2 Principal Functions of NT20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-3 Comparison between NT20S, NT20M, and NT20. . . . . . . . . . . . . .
1-2-4 Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3 Method for Connection to the Host. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4 Communications with PLC by Direct Connection . . . . . . . . . . . . . . . . . . . . .
1-4-1 Functions of the Allocated Bits and Words . . . . . . . . . . . . . . . . . . .
1-4-2 Connecting to PLC from Other Companies . . . . . . . . . . . . . . . . . . .
1-5 Communications Using RS-232C (NT20-ST128) . . . . . . . . . . . . . . . . . . . . .
1-6 Before Operating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1

Functions of the NT20

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