I have found serial com port com1 is not working for 7MU512 but working for 7MU 516 and Siprotech Synchronizer and synchrocheck relay. com4 with usb to seial converter is working for 7MU512. but not working for  Siprotech Syncbrocheck & Synchronizer relay.

Can someone give explanation.

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Split from How to connect Digsi / S7 Manager 5.5 with PC DB 9 serial Com1 port to Generator Protection Relay?.

Hi fiah,

I don't get your question.. for what do you need an explanation?

Hi,

I would like to get an example Simatic S7 Project (Simatic Manager 5.5 or TIA V13) for networking of several Siprotec Relays to show integrated alarm-events at a Central Simatic HMI.

Can anyone support me with the example project?

Hello fiah;

Information on the Siprotec 7UM512 and 7UM516 protection relays can be found through the Siemens Energy website, Smart Grid; these relays are designated as part of the Siprotec 3 family, and the information is archived.

https://w3.siemens.com/smartgrid/global/en/products-systems-solutions/downloads/pages/siprotec-archive-downloads.aspx

As you can see from the screenshot below, the 7UM512 (also the 7UM516) only have a RS-232/V24 serial connection (or a RS-232 F.O. connector) with limited connectivity. I do not think you can easily network a group of these relays.

Hope this helps,

Daniel Chartier