Two UAServers in one UAGateway
Posted: 25 Apr 2019, 10:36
Hello together,
I have a question in terms of redundancy using the UAGateway.
Scenario:
I have two systems. "System-A" and "System-B".
In System-A I have a redundant pair of computers (X1 and X2). In System-B I have also have a redundant pair of computers (Z1 and Z2).
On X1 and X2 there is an OPC UAServer installed. The OPC UAServers are synchronized with each other.
Now I would like to receive the OPC UAServer's data from System-A in my System-B. So I installed the UAGateway on my Z1 and Z2.
I would like to add the OPC UAServer of X1 zu the UAGateway installed on Z1 and also would like to add the OPC UAServer of X2 to that same UAGateway.
Now if I receive an Alarm in System-A, I can also receive that Alarm in System-B. If I acknowledge that Alarm now in System-B... what will happen in System-A?
Why am I asking? Because, I know there are two UAServers added to the local UAGateway. And if I send the acknowledge now to the OPC UAServers by using the UAGateway, what will the UAGateway do?
Is it sending the acknowledge request to both OPC UAServers added to the list of OPC UAServers? Or does it only send the request to the first added OPC UAServer?
Can you please explain, what happens in this scenario?
Kind regards
Stefan
I have a question in terms of redundancy using the UAGateway.
Scenario:
I have two systems. "System-A" and "System-B".
In System-A I have a redundant pair of computers (X1 and X2). In System-B I have also have a redundant pair of computers (Z1 and Z2).
On X1 and X2 there is an OPC UAServer installed. The OPC UAServers are synchronized with each other.
Now I would like to receive the OPC UAServer's data from System-A in my System-B. So I installed the UAGateway on my Z1 and Z2.
I would like to add the OPC UAServer of X1 zu the UAGateway installed on Z1 and also would like to add the OPC UAServer of X2 to that same UAGateway.
Now if I receive an Alarm in System-A, I can also receive that Alarm in System-B. If I acknowledge that Alarm now in System-B... what will happen in System-A?
Why am I asking? Because, I know there are two UAServers added to the local UAGateway. And if I send the acknowledge now to the OPC UAServers by using the UAGateway, what will the UAGateway do?
Is it sending the acknowledge request to both OPC UAServers added to the list of OPC UAServers? Or does it only send the request to the first added OPC UAServer?
Can you please explain, what happens in this scenario?
Kind regards
Stefan