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MES DCS System setup with multiple DeltaV domain & Single External Domain Server

Hello EE365,
We are currently having a setup of MES integrated DCS network at one of our sites. System Architecture for the same is attached below.
Mainly Third party MES is communicating with Batch Station (BS Station) & History Station (HS Station). Domain trust is enabled between two domains & all functionalities required are working as per the architecture disclosed.


1) BS Station is also our SOA gateway server where Campaign manager web services & Recipe Exchange web services are running. Same services are exposed to external server for third party API’s to use respective services.

 2) HS station is also our OPC Server station. Same OPC Server tags are exposed on external server by installing OPC remote.

Case 1 (Two Batch & History Station - One DeltaV Domain / One External domain PC)
1) Can we use same External server PC & communicate to additionally added Batch station (BS-2) & History station (HS-2) in the same DeltaV domain?

2) Can two SOA gateways be enabled on one domain network?

3) Can services on external server PC be configured for two different batch stations (point to two different SOA Gateways) on same DeltaV domain during the installation of SOA gateway (exposes web CM & RE web services) on external server PC?

4) Can OPC remote be configured for two different OPC DA servers under same domain on the DeltaV side with similar DCOM settings (Expose’s OPC tags) on external server PC?

 

 Required System Architecture is shown below

Case 2 (Two Batch & History Station - Two DeltaV Domain / One External domain PC)

 

1) Can we use same External server PC & communicate to two different Batch station (BS-1 & BS-2) & two different History station (HS-1 & HS-2) of different DeltaV domain?

2) Can services on external server PC be configured for two different batch stations (point to two different SOA Gateways) of two different DeltaV domain during the installation of SOA gateway (exposes web CM & RE web services) on external server PC?

3) Can OPC remote be configured for two different OPC DA servers of two different DeltaV domain with similar DCOM settings (Expose’s OPC tags) on external server PC?

We need to know about possible combination that are possible from above Case's at earliest. More possible combinations are more than welcome for the said architecture.

Thanks in advance for all the response’s.

Best Regards, 
Chinmay Makwana