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Communication OPC UA
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Thaer Meziane
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02/01/2024 - 09:56
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Hello guys , I am working on a new project and I have this architecture in the link bellow. I want to communicate PLC (ROLLS or PALLET) with ERP (sagex3) .I have done some researches and I have many questions and I need some help asap:

1-   I know that the PLC machines can  have "OPC UA SERVERS "integrated in it . If its not my case, should I buy an "OPC UA SERVER "or its free and can be downloaded? If I have to buy it , should I buy "OPC UA CLIENT "aswell ( ERP side) ? 

2-For the communication with ERP (SAGEX3) should I use "OPC UA SERVER for Databases" ? 

 

Link for architecture:

https://ibb.co/fXtQTrD

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Randy Armstrong
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02/02/2024 - 03:25
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If you get an OPC UA client you can talk to the PLCs.

There many commercial OPC UA clients that can collect data from a OPC UA server and push it into the MES.

You can write your won OPC UA client using one of the open source SDKs.

You need to make the decision by looking at the APIs provided by the MES and figuring out the best way to use those APIs.

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Thaer Meziane
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02/05/2024 - 00:45
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Thank you for the prompt reply, So in my case I have ERP (sagex3) :

I need more information on how to connect an OPC UA CLIENT to my ERP (SAGEX3). The ERP(Sagex3) uses either 'Oracle or SQL' to save data into the database. If I am using an OPC UA SERVER on the 'ROLLS or PALLET' side and an OPC UA CLIENT on the 'SAGEX3' side, my question is: Does the OPC UA CLIENT push the data into the database (Oracle or SQL) of my ERP? Additionally, can the OPC UA CLIENT consume data from my database (Oracle or SQL)?"

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Randy Armstrong
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02/06/2024 - 05:56
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The client would subscribe to data and then push it to the DB with SQL commands.

The OPC UA client could read data back from the DB with SQL commands.

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