2 Intended Use HIMatrix
Page 10 of 72 HI 800 023 E Rev. 1.01
2 Intended Use
2.1 Scope
The safety-related HIMatrix controllers can be used in applications up to SIL 3 in
accordance with IEC 61508.
The HIMatrix systems are certified for use in process controllers, protective systems, burner
controllers, and machine controllers.
When implementing safety-related communications between the various devices, ensure
that the system's overall response time does not exceed the fault tolerance time. All
calculations must be performed in accordance with the rules given in Chapter
Communication.
Only connect devices with safe electrical isolation to the communications interfaces.
2.1.1 De-Energize to Trip Principle/ Energize to Trip Principle
The automation devices have been designed in accordance with the 'de-energize to trip'
principle.
A system that operates in accordance with the de-energize to trip principle does not require
any power to perform its safety function.
Thus, if a fault occurs, the input and output signals adopt a de-energized, safe state.
The HIMatrix controllers can be used in applications that operate in accordance with the
'energize to trip' principle.
A system operating in accordance with the energize to trip principle requires power (such
as electrical or pneumatic power) to perform its safety function.
When designing the controller system, the requirements specified in the application
standards must be taken into account. For instance, line diagnosis for the inputs and
outputs may be required.
2.1.2 Use in Fire Alarm Systems
The HIMatrix systems with detection of short-circuits and open-circuits are tested and
certified for used in fire alarm systems in accordance with DIN EN 54-2 and NFPA 72. To
contain the hazard, these systems must be able to adopt an active state on demand.
The operating requirements must be observed!
2.2 Non-Intended Use
The transfer of safety-relevant data through public networks like the Internet is permitted
provided that additional security measures such as VPN tunnel or firewall have been
implemented to increase security.
With fieldbus interfaces, no safety-related communication can be ensured.
2.3 Operating Requirements
The use of the HIMatrix systems is only permitted under the environmental conditions
specified in the following section.
The devices have been developed to meet the following standards for EMC, climatic and
environmental requirements: