Rockwell Automation 1784-KTXD Manuel d'utilisateur télécharger pdf (Page 28)

4-12 Connecting the Network Interface Card

Publication 1784-UM527B-EN-P - October 2003

Table 4.1 Selecting the External Resistor

Interpreting the Status LEDs

What the LEDs mean depends on which protocol is running. Only the PKTXD uses both

LEDs. The left LED (labeled |) is for the top channel on a PKTXD and the other is for the

second, lower channel. A PKTX has only one channel (but multiple connectors depending on

protocol) so only one LED is used.

Table 4.2 explains the DH+ Status LED. Table 4.3 on page 4-13 explains the DH-485 Status

LED. Table 4.4 on page 4-13 explains the Remote I/O Scanner Mode LED.

The maximum number of:

If your remote I/O link: use this

resistor

rating:

physical

devices

connected on

the link:

racks that you

can scan on the

link:

operates at 230.4 K bits 82Ω 32 16

operates at 57.6 or 115.2K bit/s, and no devices listed

below are linked:

Scanners: 1771-SN; 1772-SD, -SD2;

1775-SR, -S4A, -S4B;

Adapters 1771-AS; 1771-ASB (series A only);

1771-DCM

Miscellaneous 1771-AF

connects to any device listed below: 150Ω 16 16

Scanners 1771-SN; 1772-SD, -SD2;

1775-SR, -S4A, -S4B;

Adapters 1771-AS; 1771-ASB (series A only);

1771-DCM

Miscellaneous 1771-AF

operates at 57.6 or 115.2K bit/s, and you do not require

over 16 physical devices

Table 4.2 DH+ Status LED

LED State Means

off channel not online

blinking green it is the only node on the network

solid green online and receiving token

blinking red duplicate node

solid red failed selftest

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 37 38

Commentaires sur ces manuels

Pas de commentaire

Rockwell Automation 1784-KTXD Manuel d'utilisateur Page 28

Commentaires sur ces manuels

Produits connexes et manuels pour Matériel d'enregistrement Rockwell Automation 1784-KTXD