Can OPC inputs make an alarm in 800xA
800xA 5.1......OPC inputs from a Siemens S200 Safety PLC.
Is it possible to make an alarm on these inputs or do I have to property transfer them to the PLC and trigg an alarm here.
There is an Alarm Event Configuration aspect on each boolean input in the PLC Connect folder but every time I try to change anything I get a popup saying "ActiveX component can't create object". But apart from that it looks as if it could be used to create an alarm.
Any help appreciated.
Not sure about the ActiveX component missing for OPC AE, but this suggests you are missing something possibly associated with the AE OPC server from the 3rd party.
Yes you can set Alarm properties within PLC on each Item. That is the PV if above 80% could set a High Alarm. This does not require the use of AE OPC server, but alarm time stamping and generation is handled by 800xA and not the source (PLC).
On every object you can add a aspect "Alarm Expression" there you may define Events or Alarms depending on input values. In your case the value will come from the Control Connection something like "$ControlConnection.InputValue". Unfortunaly you can not browse that expression.