Our system has S7 1516 F CPU. We have doors that have contactless safety doorcontact that is cat 4 ple rated. The sensor provides us with two eqiuvalent safety outputs.
In our safety program we could used the function SFDoor. SFDoor is normally for two sensors on the door. If we use our current sensor in combination with SFDoor, we have no monitoring for discrepancy of the two signals from the sensor. So, is it better to use the EStop function block (that has capability of monitoring discrepancy)?
If we use one of our sensors on one door, what safety category do we reach then? Or, when is it necessary to use two physical sensors on a door?
In our safety program we could used the function SFDoor. SFDoor is normally for two sensors on the door. If we use our current sensor in combination with SFDoor, we have no monitoring for discrepancy of the two signals from the sensor. So, is it better to use the EStop function block (that has capability of monitoring discrepancy)?
If we use one of our sensors on one door, what safety category do we reach then? Or, when is it necessary to use two physical sensors on a door?