Rockwell Automation 1757-FFLD4 Foundation Fieldbus Linking Device Installation Instructions - Manual (Page 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 F OUNDATION Fieldbus recommendation for the cable connecting
fieldbus devices is 0.8 mm 2 (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.