Michael Grollmus

Michael Grollmus

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Siemens SIMATIC and industrial automation expert focusing on Industry 4.0 and OT security.

High‑Performance PLCs Need Only Optional Fan Cooling
SocialJun 11, 2026

High‑Performance PLCs Need Only Optional Fan Cooling

Have you ever seen an S7 1518 with a fan unit inside a control cabinet? 😄 When you really push your Siemens Industry SIMATIC S7 1518 to its performance limit, there is actually a matching external fan unit available. The 1518 hardware...

By Michael Grollmus
STEP 7 V5.7 SP4 Boosts Stability on Windows 11
SocialJun 10, 2026

STEP 7 V5.7 SP4 Boosts Stability on Windows 11

The S7 300 has been discontinued. But STEP 7 V5 is still alive. 👇 With STEP 7 V5.7 SP4, Siemens has taken an important step in my opinion: better stability and improved compatibility with Windows 11 and current Intel processors....

By Michael Grollmus
Gain Real‑Time Insight Into S7 Controller Performance
SocialJun 9, 2026

Gain Real‑Time Insight Into S7 Controller Performance

Do you really know what is happening inside your Siemens Industry S7 controller? With the SIMATIC Controller Profiling Tool, you get deep insight into the program execution of your S7 1500 or S7 1200 G2. 🔍 The data can be...

By Michael Grollmus
AI-Driven PLC Data Analysis Becomes Automation Reality
SocialJun 8, 2026

AI-Driven PLC Data Analysis Becomes Automation Reality

A great training model 😉 and of course a really exciting example of how you analyze data from the PLC via OPC UA using AI. These are exactly the kinds of use cases that show where things are heading: 🔹...

By Michael Grollmus
Smartlight Towers: Flexible IO‑Link Configurable Signals
SocialJun 7, 2026

Smartlight Towers: Flexible IO‑Link Configurable Signals

An LED signal tower can do much more today than just red, yellow and green. 💡 In my new video, I show you which practical functions a modern Smartlight signal tower can take over in your machine and why using...

By Michael Grollmus
Choose PLC Architecture that Fits Lifecycle, Not Brand
SocialJun 1, 2026

Choose PLC Architecture that Fits Lifecycle, Not Brand

Is a PLC really just a PLC? In the end, the machine does what it is supposed to do. Right? 🤔 Basically, yes: A PLC reads inputs, processes logic and controls outputs based on that logic. But modern controllers are...

By Michael Grollmus
S7‑1200 G1 Phase‑Out Begins, G2 Takes Over
SocialMay 28, 2026

S7‑1200 G1 Phase‑Out Begins, G2 Takes Over

❤️ A piece of TIA Portal history is slowly coming to an end The SIMATIC S7 1200 was more than just a compact PLC. It was the first PLC for Siemens Industry TIA Portal and marked the beginning of a...

By Michael Grollmus
Secure PLCs by Hardening Interfaces, Not Just Code
SocialMay 27, 2026

Secure PLCs by Hardening Interfaces, Not Just Code

Cybersecurity in the PLC does not start in the code. It starts at the interfaces. 🔐 I am currently looking deeper into how to protect an Siemens Industry S7 PLC effectively against cyber attacks. One major change compared to the...

By Michael Grollmus
Clean TIA Portal Projects with Siemens Automation Framework
SocialMay 26, 2026

Clean TIA Portal Projects with Siemens Automation Framework

Do you want to structure, document and maintain your TIA Portal software in a clean way? 🧩 Then Siemens Industry Automation Framework for Discrete Automation for TIA Portal is definitely worth a look. It shows practical ways to build a...

By Michael Grollmus
Beyond Basics: Essential Checklist for PLC Security
SocialMay 21, 2026

Beyond Basics: Essential Checklist for PLC Security

🔐 What does your security checklist for Siemens Industry PLCs actually look like? User management, strong passwords and regular backups are the basics for me. But is that really enough? In practice, I would also include: ✅ clear roles and...

By Michael Grollmus
IO Link Safety: Promising Benefits, Yet Cost Hurdles Remain
SocialMay 18, 2026

IO Link Safety: Promising Benefits, Yet Cost Hurdles Remain

🚨 IO Link Safety is here. The first products are now on the market. But the key question is: 💰 Does the price performance ratio really make sense? The technology offers several exciting advantages: 🔒 Safe communication down to field...

By Michael Grollmus
Unlock PLC Scalability with TIA Portal Software Units
SocialMay 15, 2026

Unlock PLC Scalability with TIA Portal Software Units

Sometimes the biggest improvement is hidden in an area you have not explored yet. For me, Software Units in TIA Portal were exactly that kind of topic. So we invited Jan Scherbel , a standardization expert from Siemens Industry ,...

By Michael Grollmus
Fail‑Safe PLCs Outpace Relays for Complex Automation
SocialMay 14, 2026

Fail‑Safe PLCs Outpace Relays for Complex Automation

The new fail safe IOs for the Siemens Industry S7 1200 G2 are officially here 🚀 With the new fail safe signal module, Siemens significantly expands the Safety capabilities of the S7 1200 G2 platform. And this raises an interesting...

By Michael Grollmus
ET200MP: Ideal IO Extension for Large Centralized Systems
SocialMay 12, 2026

ET200MP: Ideal IO Extension for Large Centralized Systems

🏗️ Many people know the Siemens Industry AG S7 1500 CPUs in the control cabinet. But often overlooked is the ET 200MP, which uses the exact same form factor and can be a very powerful IO extension for larger systems....

By Michael Grollmus
Michael Grollmus | Pulse