139
Outline of Functions
Section 4-2
Ascertainable Operating Status of the NT20
The following operating status of the NT20 can be ascertained:
• NT20 operating/stopped status: Whether the NT20 is active or inactive
• Screen number: Number of the screen currently displayed
• Numeral setting input: Whether or not numerical values have been input
by numeral setting
For details on how these NT20 operating status is actually detected, refer to
5-5 Notification of the Operating Status to the PLC (Determining the NT20
Operating Status)
on page 208,
Screen Number Response
on page 217, and
Eight-digit Number Input Notify
on page 225.
!Caution
To ensure system safety, be sure to periodically read the PT operating status
bit from the host in order to ensure that the PT is always operating normally.
Summary of Contents for NT20
Page 1: ...Programmable Terminal Cat No V091 E1 01 NT20 USER S MANUAL ...
Page 2: ...NT series Programmable Terminal User s Manual Produced March 2007 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 15: ...xvi ...
Page 21: ...xxii EC Directives 6 ...
Page 37: ...16 Before Operating Section 1 6 ...
Page 153: ...132 Transferring the Resource Data Section 3 11 ...
Page 185: ...164 Numeral Setting Section 4 8 ...
Page 267: ...246 Key to Programs Section 6 8 ...
Page 281: ...260 Specifications Appendix A ...
Page 285: ...264 Transporting and Storing PTs Appendix C ...
Page 303: ...282 Function Restrictions Depending on the Support Tool Appendix I ...
Page 307: ...286 Index ...
Page 309: ...288 Revision History ...