1-1 the type of host and settings – Omron Programmable Terminals NT31 NT31C User Manual

Page 98

5-1

Section

Connecting to the Host’s RS-232C Port

Note One end of the wire must always be connected to the host (PC), and there must

be no branching. Branching will cause problems such as transmission delays
and communication failures.

NT31

NT31C

NT31

NT31C

NT31

(At termination)

Relay terminal block

Max. 2 m

(Not at
termination)

(At
termination)

Example of Good Connection

Examples of Bad Connections

Reference: CS1 series CPUs cannot be connected with the 1:1 connection NT link method.

Use the 1:N connection NT Link method (standard or high-speed) instead to
make the 1:1 connection. For details, refer to Using the NT link (1:N) method
(page 72) or Using the High-speed NT link (1:N) method (page 75).

5-1-1 The Type of Host and Settings

The using condition is the same as the connecting PT side RS-232C and the
host side RS-232C.
For the available type and settings of the host, refer to the pages listed below.

Method

Reference

Host link

Host Link Method (page 54)

NT link (1:1)

NT Link (1:1) method (page 67)

NT link (1:N)

Using the NT Link (1:N) Method (page 72)

High-speed NT link (1:N)

Using the High-speed NT Link (1:N) Method (page 75)

Memory link

Memory Link Method (page 78)