![background image](http://html.mh-extra.com/html/omron/nt21/nt21_setup-manual_744541019.webp)
1-4
Section
Before Operating
7
1-3-2 Connecting to the Host
The NT21 has the following two communication ports.
•
Serial port A:
D-SUB 9-pin connector (female)
For RS-232C only (The NT Support Tool and bar code readers can be con-
nected here, but an NS-AL002 Link Adapter cannot be connected.)
•
Serial port B:
D-SUB 9-pin connector (female)
For RS-232C only (The NT Support Tool and bar code readers cannot be con-
nected here, but an NS-AL002 Link Adapter can be connected.)
The host can be connected at either of these two ports.
1-4
Before Operating
Follow the procedure given below to start the system of the NT21.
•
For the Host Link, refer to
pages 40 and 69, and the
manuals for the Host Link
Unit and Programming
Device.
•
For a 1:1 NT Link, refer to
pages 51 and 77.
•
For 1:N NT Links, refer to
pages 55 and 80.
•
For high-speed 1:N NT
Links, refer to pages 60
and 83.
•
For Memory Links, refer
to pages 55 and 85
Host
Set the host settings.
Connect to the NT21.
Create the host program.
Start operation.
NT21
Install the PT in the
operation panel.
(page 16)
Connect the power supply
and peripheral device.
(page 15)
Install the system program.
*1
(Refer to page 119 and
the NT Support Tool
operation manual.)
Make the settings in the
system installer mode.
*2
(page 118)
Transmit the screen data.
(page 123)
Set the memory switches.
(page 125)
Connect to the host.
Using only RS-232C: Refer to Section 4 for details.
Using RS-422A/485: Refer to Section 5 for details.
Confirm the settings and
check communication.
NT Support Tool
Install the NT Support
Tool in the computer.
(refer to the manual for
the NT Support Tool)
Create the screens.
(Refer to the NT31/NT31C/NT631/NT631C
Programmable Terminal Reference Manual
and the NT Support Tool Operation
Manual.)
*1: System program installation is only done in special circumstances, for example
when changing the system program, or when recovering the original status of the
installed program. This operation is not normally necessary.
*2: Display of the system menu, and all change operations, can be inhibited. This
enables you to prevent the accidental deletion or alteration of screens and
settings.