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SelectTrust®

Ensuring correct touch input

SelectTrust is the first technology worldwide to be able to guarantee a verifiably correct manual data entry using a touchscreen. The entry position and the visualization at this position are checked in the functional safe SelectTrust solution. Only in case of total correctness the functional safe entry action will be transmitted to the safe computer.

Independent and cost-effective solution

Along with IconTrust, SelectTrust provides a cost-effective solution for safety considerations and proof of compliance with current safety requirements. Both monitoring systems work fully decoupled from the display function and operating function making them unique in their mode of operation.


DEUTA as sole provider offers the combination of highly-available redundant displays, safe SIL 3 display and SIL 2 input.

A totally safe choice

Multi-Functional Terminals need to be extended with suitable error detection mechanisms, if they are based on modern computer technology and are used for inputting and outputting safety-relevant information. You’re on the safe side with SelectTrust : it’s the cost-effective alternative for safe data input using a touch panel.

How SelectTrust® works

For the operator the technology is invisible: He selects a displayed graphics control element on the TFT display and presses it. Using IconTrust, SelectTrust selects the pressed control element, allocates it a signature and transmits a functional safe entry action to the safe computer. Reliability of the entry action is thus assured. SelectTrust and IconTrust monitor all safety-relevant areas.

Cost-effective installation – directly in the HMI

With SelectTrust® both safety relevant and non-safety relevant information can be realised within one single HMI unit. In this way, SelectTrust® enables use of more powerful standard PC technology and its associated advantages such as cost efficiency, ergonomics, flexibility and variability for the safety critical area.

Generic Verification for Safety Functions

Considerable cost savings can be made throughout the life cycle of these IconTrust® Multi-Functional Terminals, since verification management is limited to complying with the conditions of use. Updated verification is required for project and product adaptations only when safety relevant areas are affected. Changes in display contents with no safety relevance have no effect. Consequently, you save on costs and the time needed for acquiring new licences.

 

 IconTrust® 

 SelectTrust®

TouchTrust®

SignalTrust®


Safe Visualisation

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X


Safe Entry

 

 X

X

 

 

For Train Application

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X


X


For Industrial Application

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 X

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 X