Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Manual de usuario descargar pdf (Pagina 31)

Installation

Chapter 3

3-7

Selecting the Network Link

You use Switch Assembly SW-7, a spare assembly in all Series A

modules, to select whether the KF2 treats the network link as a Data

Highway or as a PCL.

The following table shows the settings for Switch Assembly SW-7:

For

This Network:

Set Switch 1: Set Switch 2:

Data Highway

OFF OFF

Peer Communication Link

ON OFF

Selection of RS-232-C/RS-422-A

Switch Assembly SW-8 lets you select whether the asynchronous

interface uses RS-232-C or RS-422-A standard communication.

For

Communication Using Standard:

Set Switch 1: Set Switch 2:

RS-232-C OFF ON

RS-422-A ON OFF

Important: This is the only option switch that affects KF2 operation

after power-up. It changes the voltage applied to the network link

connector pins to those required for the standard selected. Set this switch

BEFORE power-up.

Replacing a 1771-KD Module with a KF2 Module

By setting the switches properly on the KF2 module, you can use it to

replace an older 1771-KD module in an existing application without

having to make any changes in your application programs.

In Set

Switch Ass’y

Switch

No.

Setting

SW-1 1 OFF

2 Same Setting as 1771-KD Switch (Assembly SW-1, Switch 1)

3 OFF

4 OFF

5 OFF

SW-2 1, 2 Same Setting as 1771-KD Switches (Assembly SW-2, Switches 1 and 2)

SW-3 1, 2, 3 Same Setting as 1771-KD Switches (Assembly SW-3, Switches 1, 2, and 3)

SW-4 1, 2, 3 Same Setting as 1771-KD Switches (Assembly SW-4, Switches 1, 2, and 3)

SW-5 1, 2 Same Setting as 1771-KD Switches (Assembly SW-5, Switches 1 and 2)

SW-6 1, 2, 3 Same Setting as 1771-KD Switches (Assembly SW-6, Switches 1, 2, and 3)

4 Same Setting as 1771-KD Switch (Assembly SW-1, Switch 5)

SW-7 1, 2 OFF

SW-8 1 OFF

2 ON

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 234 235

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Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Manual de usuario Pagina 31

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