Rockwell-automation 1757-FFLD4 Foundation Fieldbus Linking Device Inst Manual de usuario descargar pdf (Pagina 11)

Foundation Fieldbus Linking Device 11

Publication

1757-IN021E-EN-P - August 2009

Wire the Linking Device

Wire your linking device by using these instructions.

Wire Requirements

The FOUNDATION Fieldbus recommendation for the cable connecting

fieldbus devices is 0.8 mm

(18 AWG) shielded, twisted-pair wire. It is

important to calculate how the planned topology for your fieldbus segment,

selected wiring, supplied power, and intended mix of fieldbus devices may

impact the overall performance of a fieldbus network.

For further details, see:

•the F

OUNDATION Fieldbus specifications at http://www.fieldbus.org,

publication AG-140

• the Fieldbus Solutions for Rockwell Automation’s Integrated

Architecture User Manual, publication 1757-UM006

, for a condensed

overview of fieldbus wiring considerations.

WARNING

• If you connect or disconnect wiring while the field-side power is on, an

electrical arc can occur. This could cause an explosion in hazardous

location installations. Be sure that power is removed or the area is

nonhazardous before proceeding.

• When you change switch settings while power is on, an electrical arc can

occur. This could cause an explosion in hazardous location installations.

Be sure that power is removed or the area is nonhazardous before

proceeding.

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Rockwell-automation 1757-FFLD4 Foundation Fieldbus Linking Device Inst Manual de usuario Pagina 11