ABB AC 800F Freelance 2000 Controller

ABB AC 800F Freelance 2000 Controller

Description

AC 800F opens up the flexibility of Fieldbus  technology to the user. The AC 800F collects  and processes diagnostic and process data  from four Fieldbus lines, which may be of different types. It does this in addition to the  tasks of a “conventional” process station.

The AC 800F is available in two versions:

• 4 MB static RAM, 4 MB EPROM  

• 16 MB synchronous dynamic RAM,   8 MB EPROM

Up to 4 (different) fieldbus modules can be  plugged into the AC 800F. The communication  with other controllers runs via Ethernet.

The AC 800F optionally provides several levels  of redundancy:

• device redundancy with 2 AC 800F  

• power supply redundancy (24 V DC)  

• Ethernet communication redundancy   (standard)  

• Cable redundancy for Profibus DP,   requires external equipment (RLM01) 

Features  

• Process Station with integrated fieldbus  capability  

• 4 high-speed fieldbus lines  

• Supports different fieldbus types, even  simultaneously:  PROFIBUS-DP, up to 12 MBd  Modbus  CAN  Foundation Fieldbus H1 (with LD800  HSE)  

• Easy engineering:  fully integrated in Control Builder F  

• One unified database for field devices  shared by the control level and the Human  System Interface (HSI)  

• Module recognition with factory and operational parameters  

• Comprehensive diagnostics for proactive  maintenance  

• Compact, rugged design  

• Front panel connectors  

• DIN Rail (C-rail) or wall mounting for easy  installation  

• Ambient temperature 0-60 °C (32-140 °F)  with temperature monitoring  

• EMC certification according to EN50082  

• Certification:  CE, NAMUR, CSA, UL, EN61000-6-2.

AC 800F Controller Redundancy

Controller redundancy can be achieved by installing two  AC 800F. To ensure quick and smooth takeover by the secondary AC 800F in case the primary AC 800F fails, a dedicated  redundancy communications link through the second Ethernet  module makes sure that both AC 800F are always synchronized. All inputs and outputs are designed to support redundant  operation.

Profibus Line Redundancy

Using the Redundancy Link Module RLM 01 will do the conversion of one simple, non-redundant Profibus line into two reciprocally redundant lines.

You can position the Redundancy Link Module RLM 01 directly  after a Profibus module (master), before a bus segment with  several slaves or before an individual slave. PROFIBUS stations with redundant couplers can be directly connected to the  PROFIBUS set redundant by RLM 01. Stations with only one interface can be optionally assigned to the one or other line.  For technical description dates of the Redundancy Link Module  RLM 01 see document 3BDD011600R0201.

An alternative solution to the Profibus line redundancy is to use  a Fiber Optic Ring, for example with the OZD Profi 12M module  from firm Hirschmann

AC800F Redundancy together with Profibus Line Redundancy

You can achieve both; controller redundancy and Profibus line  redundancy by using two AC 800F with one RLM01 each. This  topology combines the advantages of controller redundancy  with the one of line redundancy as described in the above  paragraphs.