Rockwell-automation 1784-KTS_KTX_KTXD User Manual Communication Interf Manual de usuario descargar pdf (Pagina 41)

Connect the Interface Card 4-7

1784-6.5.22 - November 1999

Terminate the Last Node

You must terminate both ends of your DH+ network. If the KTx is the last

physical node on your network, you must set the switch on the CP12 to terminate

the link as shown below.

Connect the Card to a Data Highway Plus Network

To connect the 1784-KTX or -KTXD card to a Data Highway Plus network, use

Allen-Bradley 1770-CD or approved cable to construct custom cable.

Important: You must terminate the last physical node of the network with a

resistor of appropriate value.

Evaluate 1784-KTx Card Connection Options

In your application, you may need to use the 1784-KTx card to

communicate with:

• multiple DH-485 stations (for example, SLC 5/0x programmable controllers)

via the DH-485 network (page 4-8)

• a single SLC 500 via a point-to-point DH-485 link (page 4-9)

Figure 4.1 and Figure 4.2 illustrate these applications.

3-pin Phoenix connector with

switchable termination resistor

node terminated

node not terminated

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Rockwell-automation 1784-KTS_KTX_KTXD User Manual Communication Interf Manual de usuario Pagina 41