Rockwell Automation 1788-CN2FF ControlNet to Foundation Fieldbus H1 Linking Device Installation Instructions - Manual (Page 13)

ControlNet-to-Foundation Fieldbus H1 Linking Device 13
Publication 1788-IN051D-EN-P - February 2004
Connecting to the ControlNet Network
There are two types of ControlNet connectors on the CN2FF, the BNC and the RJ-45.
Using the BNC:
• BNC connectors are for direct connection to a ControlNet network through a tap.
• BNC connectors must be used to connect the CN2FF to the ControlNet network.
Using the RJ-45:
• The RJ-45 connector is a network access port (NAP).
• This port is provided for configuration and development use only and it is not
intended for long term use.
• Maximum length of the cable connecting the NAP to the CN2FF is limited to 30m.
• When not in use remove the NAP port connection.
Figure 5 Typical 1788-CN2FF Connections to a Redundant ControlNet Network
IMPORTANT
Do not connect the 1788-CN2FF to more than one ControlNet
network at a time. Attempting to connect to a second network will cause
the CN2FF to operate erratically.
A B
ControlNet
Device
ControlNet
Device
Linking Device
Warning
The RJ-45 connector, NAP
port is for temporary use
only, not for production
monitoring. This port is not
intended for long term use.
When not in use remove the
NAP port connection.
Redundant
ControlNet
Networks
A is typically used
for single
networks and add
B for redundancy.