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Interface software library siAccess
communicationsapplication programmingdata transfer

Interface software library - siAccess - Softing Industrial Automation - communications / application programming / data transfer
Interface software library - siAccess - Softing Industrial Automation - communications / application programming / data transfer
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Characteristics

Function
interface, communications, application programming, data transfer
Applications
for SINUMERIK controller, for PROFINET I/O controllers, PLC, for CNC machines
Type
off-line
Operating system
Linux, 32/64-bit Windows system, Windows
Other characteristics
with dedicated library

Description

Overview
  • siAccess provides direct access to data from Siemens PLCs and CNCs via a documented API and ready‑to‑use sample applications for rapid integration.
  • Supports a broad range of Siemens PLC and CNC models and optimized data blocks for S7‑1200/S7‑1500.


Access data of Siemens PLCs
  • Wide range of supported Siemens PLCs.
  • Support for optimized data blocks in Siemens S7‑1200 and S7‑1500 controllers.
  • Access to data areas (DB, I, Q, M, T, C, P) with high throughput.
  • Implements multiple communication paths to PLCs for flexibility and redundancy.


Access data of Siemens CNCs
  • Wide range of supported Siemens CNCs (SINUMERIK series).
  • Access NC variables, NC programs, alarms, tool data and other CNC information.
  • Convenient browsing of variables and GUDs (graphic user data).


Get symbolic variable information from the PLC project
  • Load symbolic variable information offline from TIA Portal project files.
  • Load symbolic variable information offline from STEP‑7 project files.
  • Browse symbolic variable information online with support for partial (optimized) or full data retrieval on S7‑1200 and S7‑1500.


Supported operating systems & programming
  • Runs on Windows and Linux (Intel/AMD and ARM).
  • Supports 32‑bit and 64‑bit architectures.
  • APIs and examples available for C/C++, C# and Java.
  • Additional operating systems available on request.


Trial & Licensing
  • Trial version: demo mode with maximum runtime of 2 hours after first use.
  • Library distribution subject to license terms; separate redistribution agreement required for redistribution of siAccess.


Order information (scope & delivery)
  • Scope of delivery: installation package available for download.
  • Documentation: User Guide included in the installation package; Release Notes and migration documents available.


Available downloads (examples)
  • siAccess Windows setup (demo mode without license).
  • siAccess Linux setup (demo mode without license).
  • Documentation: Release Notes, Migration Guide, Data Sheet.


Technical specifications
  • Product name: siAccess — communication library for Siemens PLCs and CNCs.
  • Supported PLCs: S7‑200, S7‑300, S7‑400, S7‑400H, S7‑1200, S7‑1500, S7‑1500S, S7‑1500SP, S7‑PLCSIM Advanced.
  • Supported CNCs: SINUMERIK 810D pl, 828D, 840D pl, 840D sl, Create MyVirtual Machine.
  • Communication paths: S7‑TCP/IP Plus (optimized DBs, secured communication), S7‑TCP/IP (Ethernet), S5‑TCP/IP, S7‑PB (MPI / PPI / PROFIBUS), S7‑PC/CP (Siemens device driver, Windows only).
  • AddOns: S7‑Symbolic STEP‑7, S7‑Symbolic TIA Portal (TIA Portal 21 supported), SINUMERIK add‑on.
  • Operating systems: Windows 10/11; Windows Server 2016/2019/2022/2025 (.dll). Linux Intel/AMD (glibc >= 2.29) and Linux ARM (glibc >= 2.17) (.so).
  • Processors: Intel/AMD x86 32‑bit & 64‑bit, AMD64; ARM 32‑bit & 64‑bit (Linux).
  • Programming languages: core library in C++ with C API; applications can be developed in C/C++, C# or Java.
  • Trial: maximum runtime 2 hours after first use (demo mode).
  • Licensing: subject to license terms; separate redistribution agreement required for redistribution of siAccess.
  • Order variants / example numbers: LBA‑XX‑040010 ... LBA‑XX‑040082 (platform & path dependent variants).

Catalogs

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Exhibitions

Meet this supplier at the following exhibition(s):

Meorga Halle (Saale)
Meorga Halle (Saale)

17-17 Jun 2026 Halle (Saale) (Germany)

  • More information
    Automation Expo 2026
    Automation Expo 2026

    22-25 Jul 2026 Mumbai (India) Stand J1A

  • More information
    See all exhibitions

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    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.