IOTech Systems Limited

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Siemens S7 connectivity logo | IOTech Systems

Easily read and write data from Siemens S7-based PLC devices with IOTech’s industrial-grade S7 device connector

 

What is Siemens S7? 

Siemens S7 connectivity | IOTech Systems

  • Siemens S7 refers to the Siemens SIMATIC S7 series of programmable logic controllers (PLCs) which are widely deployed across industries such as manufacturing, energy, and automation
  • S7 defines an application layer protocol that implements functions for exchanging data between the SIMATIC S7 PLCs and other devices such as human-machine interfaces (HMIs), supervisory control and data acquisition (SCADA) systems that supports the S7 protocol 
  • The protocol operates at the application layer of the OSI (Open Systems Interconnection) model and is typically used over Ethernet or other communication mediums like PROFIBUS or RS-232
  • S7 is structured in a client-server architecture, where the client initiates communication requests and the server responds to those requests. S7 communication supports various services including reading and writing data to PLC memory, control operations and exchange of diagnostic information, etc
  • Siemens S7 PLCs are often programmed using software packages like the Siemens TIA (Totally Integrated Automation) Portal or Siemens STEP 7. These are the typical tools used to design, program, and maintain the systems

IOTech's high-performance Siemens S7 device connector supports reading and writing to the S7 class of Siemens PLCs by both singular and multiple request functions

  

The Siemens S7 device connector implements the following key features: 

  • Singular requests include:
    • Data Block: Read/Write
    • Process Input Image: Read/Write
    • Process Output Image: Read/Write
    • Last Job Result: Read
    • PLC State: Read
    • Connection State: Read
    • Log Error Code: Write
  • Multiple requests including:
    • Data Block: Read/Write
    • Process Input Image: Read/Write
    • Process Output Image: Read/Write
  • Support for the following Siemens devices: S7-300, S7-400, S7-1200, S7-1500


If you would like more information on IOTech’s Siemens S7 device connector please contact us 

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