SIMATIC S7 data
Software library for direct access to compatible Siemens S7 PLC and SINUMERIK CNC data from Windows and Linux applications.
Softing · PLC, CNC & Legacy Controller Connectivity
siAccess
Software library for direct access to compatible Siemens S7 PLC and SINUMERIK CNC data from Windows and Linux applications.
Current libraryEmbedded communication
TargetsWindows · Linux
APIC
ApplicationsC/C++ · C# · Java
CommercialRedistribution agreement
Product overview
Embedded communication
Software library for direct access to compatible Siemens S7 PLC and SINUMERIK CNC data from Windows and Linux applications.
Direct controller integrationEmbed supported Siemens PLC/CNC access into a software product without presenting the library as an OPC UA SDK.
Language bindingsUse the C API from documented C/C++, C# and Java application routes.
CompatibilityConfirm exact PLC/CNC family, communication path, OS, CPU architecture and requested data areas.
Commercial boundarySofting identifies a separate redistribution agreement; include it in product planning.
Connection architecture
siAccess in the system architecture
The product belongs in the communication/information layer; exact protocol roles and compatibility remain model- and release-dependent.
01Installed PLC / CNC
02Existing network / interface
03siAccess
04Information / application layer
05SCADA / MES / software
Verify controller/device firmware, protocol role, network segmentation and cybersecurity ownership before commissioning.
Application fit
siAccess is relevant
SINUMERIK CNC data
Software library for direct access to compatible Siemens S7 PLC and SINUMERIK CNC data from Windows and Linux applications.
Modbus TCP access
Software library for direct access to compatible Siemens S7 PLC and SINUMERIK CNC data from Windows and Linux applications.
Brownfield S7 retrofit
Software library for direct access to compatible Siemens S7 PLC and SINUMERIK CNC data from Windows and Linux applications.
Software library access
Software library for direct access to compatible Siemens S7 PLC and SINUMERIK CNC data from Windows and Linux applications.
Gateway migration
Software library for direct access to compatible Siemens S7 PLC and SINUMERIK CNC data from Windows and Linux applications.
Technical data
Key specifications and compatibility
Values are based on the supplied Softing archive data, with selected current lifecycle/product information refreshed from Softing public pages. Confirm the exact release and order code before design-in.
| Target operating systems | Windows and Linux |
|---|---|
| Programming interface | C API |
| Application languages | C/C++, C# and Java routes |
| Controller scope | Compatible Siemens S7 PLC and SINUMERIK CNC systems; exact model/path check required |
| Commercial requirement | Separate redistribution agreement |
Selection guidance
Compare the role before selecting the product
Current page
siAccess
Software library for direct access to compatible Siemens S7 PLC and SINUMERIK CNC data from Windows and Linux applications.
Embedded communicationCurrent platformSDEX Suite Gateway
Fanless DIN-rail appliance for deploying the SDEX industrial data-connectivity platform close to machines and production networks.
Industrial gatewaysCurrent brownfield adapterACCON NetLink
Compact PROFIBUS/MPI-to-Ethernet adapter for integrating supported SIMATIC S7-200/300/400 and selected SINUMERIK 840D Power Line installations into Ethernet-based engineering and data architectures.
Legacy PLC modernisationComplete the architecture
Build the information path around siAccess
01Installed PLC / CNC
02Existing network / interface
03siAccess
04Information / application layer
05SCADA / MES / software
Resources & requirement capture
Current Softing documentation and specification data
Verify manuals, downloads, licences, certifications and lifecycle directly with Softing, then freeze the Primionics configuration.
Official Softing product / lifecycle pageOpen Softing ↗Return to PLC, CNC & Legacy Controller ConnectivitySolution area →
Installed systemController/device models, firmware, network protocol and topology.
Data / asset objectiveRead/write variables, parameterization, diagnostics, monitoring or development role.
Northbound interfaceOPC UA role, MQTT broker, API, FDI/FDT, SCADA/MES or application library.
DeploymentWindows, Docker, gateway, DIN rail, OEM device or industrial PC.
CybersecurityNetwork zones, certificates, identities, remote access and patch ownership.
Commercial scopeLicences, runtime/redistribution terms, quantity, support and lifecycle.