Networks and Communications

Networks and Communications

ControlNet to FOUNDATION Fieldbus Linking Device

Connect your FOUNDATION Fieldbus Process Automation Devices to your Manufacturing Automation System

Harness the benefits of ControlNet, an open 5-megabit control-level network from ControlNet International, to connect all of your Fieldbus networks to a common backbone.

The Allen-Bradley ControlNet to Fieldbus Linking Device (1788-CN2FF) connects FOUNDATION Fieldbus H1 to your ControlNet-based control system. This innovative device allows you to easily connect any FOUNDATION Fieldbus devices to your manufacturing automation devices while capitalizing on the ControlNet network's deterministic, repeatable nature. Using the Configuration Tool, you can also configure and monitor any FOUNDATION Fieldbus device.

Make the Producer / Consumer Model Work for You

Using Producer/Consumer communication, the linking device connects your Fieldbus sensors and actuators to drives, HMIs, PLCs, and discrete I/O, while taking advantage of many other ControlNet benefits. Now you can:

• configure, monitor, and control all of your ControlNet and FOUNDATION Fieldbus devices from ONE location on your ControlNet network
• use fiber-optic cabling options in any environment
• enjoy media redundancy for dependable control
• provide for fault protection with processor hot backup
• connect intrinsically safe devices in hazardous process environments

Features

• Redundant power on 24V version
• 120/240V ac or 24V dc power
• Two Fieldbus interfaces per Linking Device
• Din rail mounting
• One linking device per ControlNet tap
• Link Active Scheduler (LAS) set-up storage, auto recovery from power outage or brown-out, segment management including address/tag assignment, time publishing, and tag query
• Use of the ControlNet Network Access Port (NAP)
• Conforms to FOUNDATION Fieldbus standards and facilitates distributed process control
• Includes the Link Active Scheduler for each of the FOUNDATION Fieldbus networks

For additional information on the ControlNet network, see the ControlNet Network System Overview, publication CNET-SO001A-US-P.

Specifications

Environmental

• Operating Temperature: 0 to 60° C (32 to 140° F)
• Storage Temperature: -40 to 85° C (-40 to 185° F)
• Relative Humidity: 5 to 90% (without condensation)

Vibration (Operating)

• 2G per axis

Communication

• ControlNet redundant media and network access port
• FOUNDATION Fieldbus H1 (2 independent channels LAS on both channels, Time Master on both channels)

Power Requirements

• 11-30V dc; 270 mA @ 24V dc (typical)

Indicators

• Module Status
• Fieldbus Status, 1 per channel
• ControlNet Status, 1 per connection

Connectors

• ControlNet BNC connectors
• Network Access Port RJ45
• Fieldbus 9-pin sub-D connectors

Conductors/Wire Size/Category

• Category 2¹

Mounting

• 35 mm DIN rail

ControlNet Channel Selection

• two 10-position rotary switches

Agency Certification (when product is marked) Information Technology Equipment Industrial Control Equipment Class I, Div. 2, Groups A, B. C, D
Hazardous Location EN 50082-1, 2 EN 55022, Radiated Emission Class B EN 61131-2 FCC Part 15, SubPart B

Refer to the Industrial Automation Wiring and Grounding Guidelines for Noise Immunity, publication 1770-IN041A-EN-P.