LOGO! Logic Module
LOGO! 9 Basic Modules put more power where you need it: up to 800 function blocks, floating-point arithmetic, and an integrated color touch display without the complexity of a full PLC platform. Built to scale, the modular system supports up to 64 DI / 60 DQ / 16 AI / 16 AQ and comes with Security-by-Design as standard. One compact device. Ready for what's next.
Why choose LOGO! 9?
LOGO! 9 is the right fit for standalone applications that need room to grow. It makes engineering faster and more flexible, brings operation and visualisation directly to the device, and meets today’s security standards out of the box.
Ideal for small machines and standalone control
LOGO! 9 combines the familiar simplicity of a logic module with new capabilities: up to 800 function blocks, floating-point arithmetic, and an integrated color touch display — all in one compact device.
More scope for growing applications
As your application grows, LOGO! 9 scales with it — up to 64 DI, 60 DQ, 16 AI, and 16 AQ. The new AM4 module adds flexible analog I/O expansion with selectable resolution for diverse sensor types.
Faster from idea to running application
LOGO! Soft Comfort V9 integrates programming, web visualization, and simulation in one tool — fully compatible with older projects and available on Windows, macOS, and Linux.
Frequently Asked Questions
Are my existing LOGO! 8 programs and expansion modules compatible with LOGO! 9?
Programs are fully compatible and can be converted bidirectionally using LOGO! Soft Comfort V9. Note that older digital and analog expansion modules are not hardware-compatible with LOGO! 9 — however, existing communication modules remain compatible.
Which LOGO! 9 Basic Module is right for my application?
LOGO! 9 Basic Modules are available in multiple supply voltage variants (12/24 V DC, 24 V AC/DC, 230 V AC/DC) and with or without an integrated display. If local operation and visualisation are required, choose a module with display. Use the TIA Selection Tool to find the right variant based on your specific I/O and voltage requirements.
Is LOGO! 9 right for your application?
LOGO! 9 is ideal when you need simple, compact and cost-effective automation without the complexity of a full PLC.
Typical applications:
- Small machines
- Pumps and fans
- Building automation
- Lighting and HVAC control
- Gates, doors and access systems
- Simple monitoring and control
What sets LOGO! 9 apart from its predecessor LOGO! 8?
LOGO! 9 brings four major Added Values over LOGO! 8:
More Power & Application Space: LOGO! 9 doubles the number of function blocks to 800, adds floating-point arithmetic for more precise analog processing, and introduces the new AM4 module with selectable analog resolution — giving you significantly more headroom for demanding applications without additional hardware.
Modern Operating & Display Experience: The new built-in color touch display and the updated 4.3″ LOGO! TDE deliver status information, message texts, and diagnostics directly at the device — for faster response in the field and a professional appearance without additional HMI hardware.
Efficient & Flexible Engineering: LOGO! Soft Comfort V9 integrates the LOGO! Web Editor including simulation in a single tool, now also available for macOS and Linux. Combined with the new four-role user management (UMAC), engineering becomes faster, more flexible, and more governed across teams.
Security & Sustainability by Design: Secure Boot and encrypted device-to-device communication protect against unauthorized access and manipulation. Firmware updates via LSC with IP retention ensure service-friendly operation
| LOGO! 9 | S7-1200 G2 | S7-1500 |
|---|---|---|
| Simple Control | Machine Control | Complex Automation |
| Small Application | Complete Machine | Large/complex machine or process |
| Few Inputs & Outputs | More Devices & Functions | Lots of Devices & Advanced Functions |
| Easy to Setup | Flexible & Expandable | High Performance & Highly Expandable |
| Lowest Cost | Mid-Range Cost | Highest Capability & Cost |
Example 2
A machine has conveyors, sensors, motors, valves and an operator HMI, with multiple things happening in sequence.
Example 3
If that packaging system becomes a large production line with many machines, advanced motion and a large amount of I/O
Application Examples
Frequently Asked Questions (FAQs)
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