Hi,
We are working on a project using WinCC OA 3.18. There are several Modbus TCP devices present in the project, which we need to configure in different phases. In current phase we have already configured approx. 238 Modbus TCP slave to one Driver (WCCOAmod). Is there any limitation of Modbus TCP Driver for maximum number of slaves? Or we need to add one more Modbus TCP Driver (WCCOAmod) to console after certain count of slaves?
Regards,
Deepak PATEL
Slave count limitation on one Modbus TCP Driver (WCCOAmod)
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- deepaktony
- Posts: 19
- Joined: Wed Jan 18, 2012 3:39 pm
Re: Slave count limitation on one Modbus TCP Driver (WCCOAmod)
In the following chapter of the documentation you can the characteristics for every WinCC OA driver:
https://www.winccoa.com/documentation/W ... neral.html
Best Regards
Leopold Knipp
Senior Support Specialist
https://www.winccoa.com/documentation/W ... neral.html
Best Regards
Leopold Knipp
Senior Support Specialist
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- Posts: 330
- Joined: Tue Jan 15, 2019 3:12 pm
Re: Slave count limitation on one Modbus TCP Driver (WCCOAmod)
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- Posts: 151
- Joined: Mon Feb 23, 2015 1:34 pm
Re: Slave count limitation on one Modbus TCP Driver (WCCOAmod)
On this help page it states under "Recommended/technical limit of connections per driver" = 1.000 with the remark "Technical limit by Operating System Resources", but I'm not sure if this is the relevant number you are looking for.
https://www.winccoa.com/documentation/W ... river.html
https://www.winccoa.com/documentation/W ... river.html
- deepaktony
- Posts: 19
- Joined: Wed Jan 18, 2012 3:39 pm
Re: Slave count limitation on one Modbus TCP Driver (WCCOAmod)
Thanks dbindernagel and leoknipp ,
I am looking for same link....
I am looking for same link....