Rockwell-automation 1763 MicroLogix 1100 Programmable Controllers User Manual de usuario descargar pdf (Pagina 89)

Publication 1763-UM001D-EN-P - March 2011

Communication Connections 87

Multiple Cable Connection

When connecting multiple cables to the DH-485 connector, use the following

diagram.

Grounding and Terminating the DH-485 Network

Only one connector at the end of the link must have Terminals 1 and 2

jumpered together. This provides an earth ground connection for the shield of

the communication cable.

Both ends of the network must have Terminals 5 and 6 jumpered together, as

shown below. This connects the termination impedance (of 120 ohm) that is

built into each AIC+ or the 1763-NC01 cable as required by the DH-485

specification.

Connections using Belden #3106A Cable

For this Wire/Pair Connect this Wire To this Terminal

Shield/Drain Non-jacketed Terminal 2 - Shield

Blue Blue Terminal 3 - (Common)

White/Orange White with Orange Stripe Terminal 4 - (Data B)

Orange with White Stripe Terminal 5 - (Data A)

Connections using Belden #9842 Cable

For this Wire/Pair Connect this Wire To this Terminal

Shield/Drain Non-jacketed Terminal 2 - Shield

Blue/White White with Blue Stripe

Cut back - no connection

(1)

To prevent confusion when installing the communication cable, cut back the white with blue stripe wire

immediately after the insulation jacket is removed. This wire is not used by DH-485.

Blue with White Stripe Terminal 3 - (Common)

White/Orange White with Orange Stripe Terminal 4 - (Data B)

Orange with White Stripe Terminal 5 - (Data A)

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Rockwell-automation 1763 MicroLogix 1100 Programmable Controllers User Manual de usuario Pagina 89