![background image](http://html.mh-extra.com/html/omron/nt21/nt21_setup-manual_744541013.webp)
1
SECTION 1
General
This section provides fundamental information about the functions and features of the PTs, types of connection, communica-
tion methods, etc. This information will enable you to understand the applications of the PTs.
1-1
Role and Operation of the NT21
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1-1
Operation of an NT21 at an FA Production Site
2
. . . . . . . . . . . . . . . . . . . . . . . . . .
1-1-2
Operations of the NT21
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
Comparison between NT20S and NT21
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
System Configuration
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-1
Peripheral Devices That Can Be Connected
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-2
Connecting to the Host
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4
Before Operating
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .