LOGO! Expansion Modules extend your LOGO! 9 Basic Module with additional digital and analog I/O — directly via the Backbone Bus. Scale your application up to 64 DI, 60 DQ, 16 AI, and 16 AQ without changing your hardware architecture or increasing engineering complexity.
From compact standalone setups to larger networked configurations: the modular portfolio covers digital and analog expansion needs — including the new AM4 module with selectable analog resolution.
Add digital and analog channels exactly where needed — via direct Backbone Bus connection to the LOGO! 9 Basic Module. No additional wiring overhead, no gateway required, no change to your existing program logic.
Choose from digital expansion modules for 12/24 V DC and 230 V AC applications, or analog modules for sensor-level precision. Every module slots directly into the LOGO! 9 system without additional configuration effort.
Start compact and expand when needed — up to 64 digital inputs, 60 digital outputs, 16 analog inputs, and 16 analog outputs. The modular architecture keeps your system lean, cost-efficient, and future-ready.
Digital expansion | DM8 and DM16 modules for 12/24 V DC and 230 V AC/DC |
Analog expansion | AM4: 2 AI + 2 AO, selectable resolution 1,000 / 4,095 / 10,000 steps (AM2 RTD and AM4 AQ available Q1 2027) |
Max. I/O expansion | Up to 64 DI / 60 DQ / 16 AI / 16 AQ per LOGO! 9 system |
Connection | Direct Backbone Bus — no additional wiring or power supply required |
Floating-point support | Supported on AM4 AI/AQ for precise analog processing |
Compatibility | Not hardware-compatible with LOGO! 8 expansion modules; programs convertible via LOGO! Soft Comfort V9 |
Max. modules per system | Up to 16 expansion modules per LOGO! 9 Basic Module |
The LOGO! AM4 AI/AQ combines 2 analog inputs and 2 analog outputs in one device. Selectable resolution (1,000 / 4,095 / 10,000 steps) and floating-point support enable precise sensor processing without oversized hardware.
All LOGO! 9 Expansion Modules connect directly via the Backbone Bus — no additional power supply or communication wiring needed. Fast to commission, easy to service in the field.
Existing LOGO! programs convert bidirectionally via LOGO! Soft Comfort V9. Note that LOGO! 8 digital and analog expansion modules are not hardware-compatible with LOGO! 9.