LOGO! Application Manual introduces Siemens LOGO! series products' features and characteristics. LOGO! is an innovative general logic control module developed by Siemens in 1996. It fills the technological gap between traditional relays and PLCs and has now developed into a modular standard component product. The module itself integrates 8 basic functions such as “AND”, “OR”, “NOT” and 28 proprietary functions such as time timing, counters and analog processing. LOGO! uses internal function block programming to replace the external wiring scheme of traditional relay switches. In a small module, users can arbitrarily call the various function blocks they need to edit their own application programs, thus realizing the control tasks that require many timers, relays, clocks and contactors.
The guide introduces the LOGO! series of programmable logic modules, highlighting their integrated functions such as logical operations, timers, counters, and analog processing. It also details the hardware capabilities, including up to 24 digital inputs, 16 digital outputs, 8 analog inputs, 2 analog outputs, and selectable supply voltages of 12 V, 24 V, or 220 V.
A large portion of the document is devoted to real‑world application examples across many fields – from woodworking and packaging to racing, building automation, lighting control, and industrial process monitoring. Contact information for Siemens China technical support is provided at the end. This manual is written in Chinese.
| Relay output current capacity | 10 A |
|---|---|
| Maximum digital inputs | 24 |
| Maximum digital outputs | 16 |
| Maximum analog inputs | 8 |
| Maximum analog outputs | 2 |
A LOGO! module can be configured with up to 24 digital inputs.
Each relay output on the LOGO! module can carry up to 10 A.