LOGO! PLC: Small Size, Big Performance – Your Go-To for Small-Scale Automation
LOGO! PLC: Compact Automation Solution
The LOGO! Series is a trusted micro-PLC line designed for small-scale automation applications. Ideal for shop lighting, agricultural machinery control, and standalone equipment in small workshops and factories, it offers exceptional flexibility, reliable connectivity, and user-friendly operation that meets the cost-effective control needs of SMEs and micro-enterprises worldwide.
Core Features
Integrated & Space-Saving Design
Combines I/O points, timers, power supply, and optional backlit display in one compact unit (only 72mm wide). Compatible with standard DIN35mm rail mounting, requiring no complex accessories and significantly saving control cabinet space.
Flexible Expansion for Diverse Needs
Supports digital, analog, and communication expansion modules. Maximum expandability: 24 digital inputs, 20 digital outputs, and 8 analog I/O points. Some base units include 4 built-in analog inputs for balanced control scenarios.
Easy Operation & Low Maintenance
Free LOGO! Soft Comfort software with 38+ preconfigured function blocks requires no advanced programming skills. Program via front-panel keypad or software, featuring automatic daylight saving time switching and password protection to reduce long-term maintenance efforts.
Rugged & Reliable Performance
Shock-resistant design meets strict EMC standards. Operating temperature range: -20°C to 55°C (non-condensing). Annual failure rate <0.5% with service life exceeding 100,000 hours, suitable for both industrial and building automation environments.
Key Highlights
- Outstanding Cost-Effectiveness: Priced 50-70% lower than comparable small PLCs with built-in analog channels eliminating additional module costs
- Strong Digital & Communication Capabilities: Full series integrates Ethernet ports supporting S7-TCP, Modbus TCP/IP for seamless connectivity with Siemens S7 PLCs, inverters, and third-party devices
- Efficient Data Handling: Micro SD card support (up to 32GB) for storing 20,000+ data logs enabling scheduled collection of temperature, pressure, and other parameters
- Versatile Application Adaptability: Voltage options: DC 12V/24V, AC/DC 115/240V for industrial equipment, building automation, agricultural machinery, and more
Technical Specifications
Main Base Modules
| Parameter Type |
24 CE,12/24RCE |
24 RCE/230 RCE |
12/24 RCEo,24 CEo |
24 RCEo,230 RCEo |
| Supply Voltage |
24V DC / 24V DC Transistor Output |
115V/230V AC / Relay Output |
12/24V DC / Relay Output |
24V AC/DC / Relay Output |
| I/O Configuration |
8 Digital Inputs (4 Analog Inputs included), 4 Digital Outputs |
8 Digital Inputs, 4 Digital Outputs |
8 Digital Inputs (4 Analog Inputs included), 4 Digital Outputs |
8 Digital Inputs, 4 Digital Outputs |
| Memory Capacity |
Program memory: 400 function blocks |
Program memory: 400 function blocks |
Program memory: 400 function blocks |
Program memory: 400 function blocks |
| Core Functions |
Integrated Ethernet, Web Server, Data Logging, Micro SD Card Support, Cloud Connectivity |
Integrated Ethernet, Web Server, Data Logging, Micro SD Card Support, Cloud Connectivity |
Integrated Ethernet, Web Server, Data Logging, Micro SD Card Support, Cloud Connectivity |
Integrated Ethernet, Web Server, Data Logging, Micro SD Card Support, Cloud Connectivity |
| Display |
With Display |
With Display |
Without Display |
Without Display |
Common Expansion Modules
| Module Model |
Module Type |
Power Compatibility |
I/O Configuration |
Application Scenarios |
| DM8 24 |
Digital Expansion Module |
24V Compatible |
4 Digital Inputs, 4 Digital Outputs |
Compatible with LOGO!8 24V base units; expands digital I/O for small-scale control |
| DM16 24 |
Digital Expansion Module |
24V Compatible |
8 Digital Inputs, 8 Digital Outputs |
Replaces two DM8 24 modules; ideal for 24V systems requiring more digital points |
| AM2 |
Analog Expansion Module |
Universal Voltage Compatible |
2 Analog Inputs |
Works with all base unit voltage types; expands analog data collection |
| AM2 RTD |
Analog Expansion Module |
Universal Voltage Compatible |
2 PT100/PT1000 Inputs |
Precise temperature signal acquisition for industrial applications |
| AM2 AQ |
Analog Expansion Module |
Universal Voltage Compatible |
2 Analog Outputs |
Enables stepless regulation of actuators via analog signals |
Series-Wide Universal Specifications
| Universal Parameters |
Specifications |
| Maximum Expandability |
Digital Inputs: 24 max; Digital Outputs: 20 max; Analog Inputs: 8 max; Analog Outputs: 8 max |
| Operating Temperature |
-20°C to 55°C (Non-condensing) |
| Programming Software |
Compatible with LOGO! Soft Comfort V8.3+ |
| Communication Protocols |
Supports S7-TCP, Modbus TCP/IP; Integrated Ethernet Port |
| Data Storage |
Supports Micro SD Card (up to 32GB); Stores 20,000+ data logs |
| Mounting Type |
Standard DIN35mm Rail Mounting |
Product Models
| Category |
Model |
Ordering Number |
| Basic Units (With Display) |
LOGO! 12/24 RCE |
6ED1052 - 1MD08 - 0BA1 |
| LOGO! 24 CE |
6ED1052 - 1CC08 - 0BA1 |
| LOGO! 24 RCE(AC/DC) |
6ED1052 - 1HB08 - 0BA1 |
| LOGO! 230 RCE(AC/DC) |
6ED1052 - 1FB08 - 0BA1 |
| Basic Units (Without Display) |
LOGO! 12/24 RCEo |
6ED1052 - 2MD08 - 0BA1 |
| LOGO! 24 CEo |
6ED1052 - 2CC08 - 0BA1 |
| LOGO! 24 RCEo(AC/DC) |
6ED1052 - 2HB08 - 0BA1 |
| LOGO! 230 RCEo(AC/DC) |
6ED1052 - 2FB08 - 0BA1 |
Modules marked with "R" adopt relay output, suitable for high-voltage and high-current scenarios; those without "R" mostly use transistor output, applicable to high-frequency switching control. Power supply modules cover multiple voltage specifications, matching the power grids of North America, Europe, and other regions.
Application Systems
Small-Scale Industrial Equipment Control
Ideal for basic start-stop logic, simple parameter adjustment, and cost-sensitive light industrial scenarios with easy commissioning and maintenance.
Building & Civilian Facility Automation
Modular design and versatile timing/sensor linkage functions meet control needs for lighting, HVAC, and security in buildings.
Small-Scale Energy & Fluid Control
Optimized for pumps, compressors, and small energy devices with reliable linkage control based on level/pressure signals.
Educational & Experimental Control
User-friendly operation with 40+ built-in function blocks makes it ideal for PLC training and academic research.
Distributed Auxiliary Control
All LOGO! 8+ models feature Ethernet ports supporting S7-TCP/Modbus TCP protocols for seamless integration into distributed systems.
Frequently Asked Questions
We're in South America with a 440V 60Hz grid. Can the LOGO! 230V model be used directly?
Never connect directly! The LOGO! 230V model's maximum voltage is 265V. Use an isolation transformer (primary 440V, secondary 220V) with 10W+ power rating to step down voltage safely and filter grid noise.
We use LOGO! on a farm powered by 12V solar panels. Which model is suitable?
Choose LOGO! 12/24 RCE (6ED1052-1MD08-0BA1) supporting wide voltage input (12V/24V DC). Add an energy storage battery and voltage regulator to prevent voltage drops causing PLC restarts.
LOGO! installed near high-power equipment has communication drops. Is it interference?
Yes, likely electromagnetic interference. Separate strong and weak wires in different trunking, use shielded cables with proper grounding, and avoid mixing power and communication cables.
Can LOGO! handle Middle Eastern desert temperatures exceeding 50℃?
LOGO! operates from -20℃ to 55℃. Leave 5-10cm ventilation space, add cooling fans, avoid direct sunlight, and seal cabinets against dust for optimal performance.
LOGO! Soft Comfort installation gets stuck on Windows 10. How to fix?
Use version V8.3+, run installer in Compatibility Mode (Windows XP SP3) as administrator. Copy to hard drive root directory and disable firewalls/antivirus during installation.
Can I modify programs or check status directly with a phone?
Yes! All LOGO! 8+ models have built-in Web Server. Connect phone to PLC's Ethernet network, enter IP address in browser to adjust parameters, check faults, and control equipment remotely.