The function block has been developed according to the safety requirements (from applicable standards) listed in this section. All other requirements from these standards must be observed when implementing the safety-related function.
This section describes either how the function block meets the requirements of the standards or what measures need to be taken to meet the requirements of the standards.
|
Standards |
Context/Requirement |
Implementation |
|---|---|---|
|
EN ISO 13849-1 |
Proven safety principles |
Monitoring of antivalent switching behavior of two signals. |
|
EN ISO 13849-1 |
Fault detection for Cat. 3 and Cat. 4 |
Monitoring of antivalent switching behavior of two signals. |
Cross-circuit monitoring is not performed by the function block. It is your responsibility to perform this monitoring function outside of this function block in the safety-related control system.