UFC092BE01 HIEE300910R1 ABB Fieldbus Module in Stock

UFC092BE01 HIEE300910R1 ABB Fieldbus module in stock

UFC092BE01 HIEE300910R1 ABB Fieldbus module in stock

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The Mode of Operation is the way in which the Safety Related System will be used

with respect to frequency of demands upon it. Two modes of operation are defined

in IEC 61508:

Low Demand Mode: where the frequency of demands for operation made on a

safety related-system is no greater than one per year and no greater than twice the

proof-test frequency;

High Demand or Continuous Mode: where the frequency of demands for operation

made on a safety-related system is greater than one per year or greater than twice the

proof-test frequency.

AC 800M HI can be used to control both Low Demand and High Demand safety

functions, provided the safe state is defined as stop/de-energize1

.

The AC 800M HI can be configured with a “fault detection and reaction time” as

low as one second.

Redundancy

AC 800M HI does not require any redundancy for safety integrity reasons. However,

the controller and I/O system can be designed for any optimization of system

availability (system uptime) by individually being configured with redundant input

modules, redundant CPU/communication modules and/or redundant output

modules.