Rockwell-automation 2706-NP3 DL20 OFFLINE PROGRAMMING MANUAL Instrukcja Użytkownika Pobierz pdf (Strona 60)

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Chapter

9–1

Using Terminal Mode

This chapter shows how to use menu option 2 - Terminal/Keyboard

(2706-NK1) Mode to communicate with a DL20. This option allows your

computer keyboard to emulate a Catalog No. 2706-NK1 or -NK2 Keyboard.

Terminal/Keyboard mode is useful for:

• verifying a communication link between your computer and a DL20

• verifying messages after a download operation

• performing DL20 data entry and configuration functions

To use your computer in terminal/keyboard mode you must first connect to

the DL20 using the appropriate cable. The figure below shows this

connection using the Catalog No. 2706-NC2 Cable. It is identical to the

download connection in Chapter 8.

Personal Computer

Catalog No. 2706-NC2 Cable

DL20 Dataliner

422

232

OUT

232

IN GND

+12

VDC

OUT

SERIAL COMM PORT

422

–

45678 9

ATTENTION: Do not connect computer to DL20 when power is

applied to the DL20. Damage to DL20 could result.

1. Attach the 25-pin connector end of cable to the Com1 or Com2 serial

communication port of your computer.

If your computer’s serial port has 9 pins use an AT Adapter with

the 2706-NC2 cable.

2. Attach the three spade connectors on other end of cable to the

same numbered terminals on the back of the DL20 display.

Important: The DL20 must be set to the same baud rate as the serial port

of your computer to establish communications.

3. Power on DL20.

Chapter Objectives

Connecting to DL20

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