Item

Instruction or parameter

Remark

1

Safety handling

Instructions on how to configure, parameterize, commission and test the device safely in accordance with the IEC 61508 series and IEC 61784-3.

2

PFH, respectively PFDavg

The PFH, respectively PFDavg, per logical connection of the safety function.

See 9.3.2

and 9.4

3

SFRTOPCSafety

Information on how this value can be calculated by the end user or OEM.

See 8.1

The implementation and error reaction of ConsumerCycleTime is in the responsibility of the either the vendor or the integrator, or both.

4

SafetyBaseID / SafetyProviderID

Information on how the SafetyBaseID and SafetyProviderID are generated and assigned.

See 9.1.1

5

Commissioning

Either the end user or the OEM, or both, are responsible for verification and validation of correct cabling and assignment of network addresses.

The safety manual shall address how this can be accomplished.

6

Operator acknowledgment

If the SafetyConsumers makes a transition to fail-safe substitute values requiring operator acknowledgment “frequently”, this is an indication that a check of the installation (for example electromagnetic interference), network traffic load, or transmission quality is required.

It shall be mentioned in the manual that it is potentially unsafe to simply omit these checks.“Frequently” in this context is defined as

–more than once per day in SIL 2 and SIL 3 applications

–more than once per week in SIL 4 applications

7

High demand and low demand applications

The SafetyConsumer shall be executed cyclically within a shorter time frame than the SafetyConsumerTimeout.

8

Maintenance

Specific requirements for device repair and device replacement.

9

Relevant safety standards

A safety device according to this document shall fulfill the requirements of the relevant safety standards, such as the IEC 61508 series (according to the SIL as described) when used in live operation.

For usage in live operation