ABB FI810F 3BDH000030R1 CAN-module

Description

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

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.

The basic unit, PM 802F and respectively PM803F, cyclically
scans signals from the fieldbus sensors via the corresponding
fieldbus modules, processes these signals according the application programs installed by the user and sends appropriate
signals to the fieldbus actuators via the fieldbus modules.
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.
Data communication between AC 800F, process and operator
stations runs over the Ethernet system bus on the first Ethernet
module. Data exchange with the engineering station is also carried via the system bus. Engineering station communications
can involve new or updated configuration files being
downloaded to the process stations, or information about the
connected modules being reported back. When fieldbus modules are installed or exchanged, the required configuration information is automatically updated.
Configuration and real-time process data is stored in RAM. To
safeguard this data in case of power loss, the RAM power is
backed up with batteries located either on the Ethernet modules
or on battery modules.
The PM 803F has more memory than the PM 802F and is
therefor capable to handle larger projects. Due to increased
memory size and different technology the buffering times were
reduced.

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