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gert
Member 3
Joined: 02 Jan 2015
Posts: 645
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 Posted: 05/10/2018 20:22 Post subject: S7 Stations and PC Stations via SIMATIC NET OPC Server |
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Determining the Transmission Times for Typical Configurations between S7 Stations and PC Stations via SIMATIC NET OPC Server
https://support.industry.siemens.com/cs/document/45351400/determining-the-transmission-times-for-typical-configurations-between-s7-stations-and-pc-stations-via-simatic-net-opc-server
Typical configurations consist of a central OPC UA server on an industrial PC and several S7 stations communicating with the OPC UA server. The OPC UA Client acccesses this data through the OPC UA server on a PC or directly throug the OPC UA server on the S7-1500 PLC.
Important questions in this context are:
Which S7 components are best suited for the planned automation project?
Basic Controller
Advanced Controller
Distributed Cotroller
Software Controller
What influence do different quantity frameworks have on runtimes?
How does the data communication affect the cycle (OB1) of an S7 controller?
How do the various OPC UA services differ respectively?
OPC UA Write
OPC UA Read
OPC UA subscription
OPC UA cpu subscription (only SIMATIC NET OPC UA Server)
Which data transfer times are expected for typical configurations and systems?
Which statistical fluctuations can occur?
The following figure shows the measuring setup in principle:
https://support.industry.siemens.com/cs/attachments/45351400/Measured_Components_of_OPC_ID34.pdf
https://support.industry.siemens.com/cs/attachments/45351400/HelpFile_OPC_34_en.pdf
https://www.automation.siemens.com/perfdata/perfdata.aspx?version=34&lang=en
https://support.industry.siemens.com/cs/attachments/45351400/Measured_Components_of_OPC_ID32.pdf
https://support.industry.siemens.com/cs/attachments/45351400/HelpFile_OPC_32_en.pdf
https://support.industry.siemens.com/cs/attachments/45351400/measured_components_opc_id24.pdf
https://support.industry.siemens.com/cs/attachments/45351400/measured_components_opc_id20.pdf |
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