
SIMATIC STEP 7 programming software
SIMATIC STEP 7
Software for configuring, programming, testing and diagnosing SIMATIC controllers: STEP 7 in TIA Portal in Basic and Professional editions, and classic STEP 7 V5.7 SP4
نرمافزار اتوماسیون

© Siemens AG
TIA Portal
Siemens' integrated engineering framework that brings PLC programming, HMI and SCADA design and drive commissioning together in one project; current version V21
Price and delivery time are given after a technical review.
TIA Portal (Totally Integrated Automation Portal) is Siemens' engineering framework for automation: one environment and one project for controller programming, HMI and SCADA design, and drive commissioning. TIA Portal is not a single product with a single order code; each software package inside it (STEP 7, WinCC, Startdrive and the options) has its own order code and licence.
Siemens' TIA Portal page also names multi-user engineering, Module Type Package (MTP) solutions, extended security functions and the generative-AI assistant Eigen Engineering Agent.
The current version is V21, which Siemens presented at the SPS trade show on 11 November 2025. From V21 there are no service packs; they are replaced by "updates" (regular, cumulative improvements) and "hotfixes" (fast fixes for critical security and stability issues). The technical version numbering changed with it: 21.0.0.0 is the release, 21.0.1.0 is Update 1 and 21.0.0.1 is Hotfix 1. The latest update readme found (04/2026) covers Updates 1 and 2.
On 24 September 2026 Siemens announced TIA Portal V21.1 for SPS 2026 and said that, for the first time, the installed software is decoupled from licensing. The release date and the licence terms of V21.1 have not yet been confirmed from a Siemens source.
Licence keys are installed with the Automation License Manager. Without a valid key a trial licence can be activated once; it expires after 21 days, after which TIA Portal runs only with restrictions.
Windows 10 Enterprise 21H2/2021 LTSC, Windows 11 (Professional and Enterprise; the Home edition only for the Basic editions) and Windows Server 2022 and 2025 Standard. Minimum: Intel Core i3-6100U, 8 GB RAM and 20 GB of disk space. Siemens recommends a Core i5-8400H, 16 GB RAM (32 GB for large projects) and an SSD.
| Model | Order code | Code type | Attributes | Request |
|---|---|---|---|---|
| STEP 7 Professional V21نرمافزار STEP 7 Professional نسخهٔ V21؛ زیمنس در مثال کاربردی ۰۳/۲۰۲۶ همین کد را بهعنوان «TIA Portal V21» برای برنامهریزی S7-1500 آورده است | 6ES7822-1AA25-0YA5 | Exact code |
| Request STEP 7 Professional V21 |
| STEP 7 Basic V21نرمافزار STEP 7 Basic نسخهٔ V21 با توابع ایمنی؛ زیمنس آن را در کیت استارتر S7-1200 G2 عرضه میکند | 6ES7822-0AA25-0YA5 | Exact code |
| Request STEP 7 Basic V21 |
| STEP 7 Professional V21/2021 SR4 Combo (download)مجوز Combo برای STEP 7 Professional V21 و STEP 7 Professional 2021 SR4 کلاسیک، با تحویل آنلاین (OSD) | 6ES7810-5CE18-0YB5 | Exact code |
| Request STEP 7 Professional V21/2021 SR4 Combo (download) |
| STEP 7 Professional V21/2021 SR4 Combo (USB package)همان مجوز Combo با تحویل روی USB | 6ES7810-5CC18-0YA5 | Exact code |
| Request STEP 7 Professional V21/2021 SR4 Combo (USB package) |
| WinCC Advanced V21نرمافزار مهندسی WinCC Advanced نسخهٔ V21 در TIA Portal؛ زیمنس در مثال کاربردی ۰۴/۲۰۲۶ آن را «SIMATIC WinCC Advanced V21, engineering software» مینامد | 6AV2102-0AA02-5AA5 | Exact code |
| Request WinCC Advanced V21 |
| WinCC Unified PC (10k) ES V21 (download)نرمافزار مهندسی WinCC Unified PC تا ۱۰ هزار PowerTag، با تحویل دانلود | 6AV2153-2FB02-5LA5 | Exact code |
| Request WinCC Unified PC (10k) ES V21 (download) |
| SINAMICS Startdrive Basic V21مجوز Startdrive Basic نسخهٔ V21 برای راهاندازی درایوهای SINAMICS داخل TIA Portal | 6SL3072-4MA02-0XG5 | Exact code |
| Request SINAMICS Startdrive Basic V21 |
| Current versionCurrent version | V21 |
|---|---|
| Updates releasedUpdates released | Update 1, Update 2 (readme 04/2026) |
| Version numberingVersion numbering | 21.0.0.0 release; 21.0.1.0 Update 1; 21.0.0.1 Hotfix 1 |
| Announced next versionAnnounced next version | V21.1 (announced 24 Sep 2026) |
| DeploymentDeployment | On-premises, subscription, cloud |
| STEP 7 editionsSTEP 7 editions | STEP 7 Basic, STEP 7 Professional (+ Combo licence) |
|---|---|
| WinCC editionsWinCC editions | Basic, Comfort, Advanced, Professional; Unified Basic, Unified Comfort, Unified PC |
| Drive commissioningDrive commissioning | SINAMICS Startdrive (integrated in TIA Portal) |
| AI assistantAI assistant | Eigen Engineering Agent |
| Licence managementLicence management | Licence key via Automation License Manager |
|---|---|
| Trial licence (one-time activation)Trial licence (one-time activation) | 21 days |
| Backward validity of a STEP 7 Professional V21 keyBackward validity of a STEP 7 Professional V21 key | STEP 7 Basic and Professional V11 … V21 |
| Operating systemOperating system | Windows 10 Enterprise 21H2/2021 LTSC; Windows 11 Pro 24H2, Enterprise 24H2, Enterprise 24H2 LTSC, Enterprise 23H2 (Home 24H2: Basic editions only); Windows Server 2022 and 2025 Standard |
|---|---|
| Minimum processorMinimum processor | Intel Core i3-6100U, 2.30 GHz |
| RAM (minimum / recommended)RAM (minimum / recommended) | 8 / 16 (32 for large projects) GB |
| Disk space (minimum S-ATA / recommended SSD)Disk space (minimum S-ATA / recommended SSD) | 20 / 50 GB |
| VirtualisationVirtualisation | VMware ESXi 8.0+, VMware Workstation/Player 17+, Hyper-V Server 2019+ |
SINAMICS Startdrive
Commissioning software for SINAMICS drives that is fully integrated in TIA Portal
TIA Portal Multiuser Engineering
Multi-user engineering: several people work on one project at the same time
TIA Portal Cloud
Access to the right TIA Portal version without installing or updating it on your own system
Eigen Engineering Agent
A generative-AI agent connected to TIA Portal that, according to Siemens, carries out tasks such as PLC coding, HMI visualisation and device configuration
Manual
Installation, Programming and Operating Manual, STEP 7 and WinCC V21
Installation, Programming and Operating Manual, STEP 7 and WinCC V21
Language: English · Version 11/2025
Manual
TIA Portal Updates Readme (V21 Update 1 and Update 2)
TIA Portal Updates Readme (V21 Update 1 and Update 2)
Language: English · Version 04/2026
Other
TIA Portal V21 Updates: Version numbering and faster support through hotfixes
TIA Portal V21 Updates: Version numbering and faster support through hotfixes
Language: English
Other
Siemens press release: TIA Portal V21 combines engineering efficiency with higher plant availability
Siemens press release: TIA Portal V21 combines engineering efficiency with higher plant availability
Language: English · Version 11/2025
Other
Siemens at SPS 2026: topic overview (includes TIA Portal V21.1)
Siemens at SPS 2026: topic overview (includes TIA Portal V21.1)
Language: English · Version 09/2026
TIA Portal is a framework that gathers several software packages under one interface and one project: STEP 7 for the controller, WinCC for HMI and SCADA and Startdrive for the drive. Each package has its own order code and licence, so a quote has to say which of them are needed.
The current version is V21 (presented on 11 November 2025) and its Updates 1 and 2 have been released. On 24 September 2026 Siemens announced V21.1 and says it decouples the installed software from licensing, so customers buy features rather than versions. The release date and licence terms of V21.1 are not yet confirmed.
The licence key is installed with the Automation License Manager. Without a valid key a trial licence can be activated once; it is valid for 21 days, after which TIA Portal runs only with restrictions. Before formatting the disk or reinstalling Windows, the keys must be moved out with the same tool and backed up.
Yes, for STEP 7: a STEP 7 Professional V21 key runs STEP 7 Basic and Professional from V11 to V21 without restrictions. The Combo licence also covers classic STEP 7 V5.4 to V5.7 and STEP 7 Professional 2010, 2017 and 2021. For WinCC, a V21 key likewise runs older WinCC versions.
From V21 there are no service packs. An update is a regular, cumulative set of improvements; a hotfix is a fast fix for critical issues (security and stability) between two updates. Both stay compatible with existing projects, but an update may add new devices, and a project that uses such a device works only with the updated version.
According to the V21 installation manual, only for the Basic editions (such as STEP 7 Basic). The other editions need Windows 11 Professional or Enterprise. The full operating-system list is in the system requirements, and the final check is done with Siemens' compatibility tool.
Send your order code or requirement; after a technical review we give you the price and delivery time.