Rockwell-automation 5730 DriveLogix5730 Controller for PowerFlex 700S Manual de usuario descargar pdf (Pagina 186)

9-8 Communicating with Devices on a DH485 Link

Grounding and Terminating a DH-485 Network

You must terminate the network at the first and last PHYSICAL devices, by

connecting pin 6 (Termination) to pin 5 (Data A).

You must ground the network at the first PHYSICAL device by connecting

pin 1 (Chassis Ground) to pin 2 (Shield).

Important: A device’s physical location may be independent of its node

address. Make sure you ground and terminate the proper

PHYSICAL locations.

Termination

Data A

Data B

Common

Shield

Chassis Ground

WH/OR

OR/WH

BU

6

5

4

3

2

1

Termination

Data A

Data B

Common

Shield

Chassis Ground

WH/OR

OR/WH

BU

6

5

4

3

2

1

Add jumpers to connect pin 6 (Termination) to

pin 5 (Data A) on the first and last PHYSICAL devices

Add jumper to connect pin 1 (Chassis Ground) to

pin 2 (Shield) on the first PHYSICAL device

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