Sharp 7 S1200 slow communication without Siemens RT running

32/64 bit multi-platform Ethernet S7 PLC communication suite

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Sharp 7 S1200 slow communication without Siemens RT running

Forum: General Discussion

Creator: Xanax5

Created: 2019-07-26

Updated: 2019-07-26

Xanax5 - 2019-07-26

Hi,

I am using sharp 7 client application to communicate with S1214 PLC. Application is writing several strings to plc cca. 800bytes.
When application is running on PC Windows 10 with installed Siemens Tia portal and other Siemens software sending of data to plc is finished in about 200ms. When I put the same application on another PC without any Siemens software running data transfer is around 600ms. What is the source of this difference?
I tried to run Siemens Runtime Advanced on this second PC and after that I got communication to run faster, cca 200 ms each transfer. 2 PCs and plc are connected via switch.

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