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Model Segment Definition
| Segment | 6ES7 | 214 | 1AG40 | 0XB0 |
| Signification | Siemens automation product identifier | S7-1200 series CPU | 1214C DC/DC/DC configuration | Standard version, no special functions |
| Description détaillée | 6ES7 = SIMATIC automation system product line | 2 = S7-1200 series; 14 = CPU 1214C model | 1 = Standard type; AG = DC/DC/DC (24V DC power supply / 24V DC digital input / 24V DC digital output); 40 = Firmware version V4.0 | 0 = Standard hardware version; XB0 = No special functions (par ex., no display, no explosion-proof certification) |
Positionnement de base: Compact CPU of SIMATIC S7-1200 series, model CPU 1214C DC/DC/DC. It is the main controller for small and medium-sized automatic control systems.
- Core Specification Parameters
2.1 Paramètres de base
| Paramètre | Spécification | Remarques |
| Type de produit | Compact CPU | Integrated I/O, independent operation without additional modules |
| Power Supply Type | DC/DC/DC | 24V DC power input, 24V DC digital input/output |
| Tension de fonctionnement | 20.4-28.8À DC | Rated 24V DC, with reverse polarity protection |
| Consommation d'énergie | Typical 12W | Max current consumption 1.5A (including all expansion modules) |
| Température de fonctionnement | -20°C ~ 60°C (montage horizontal) | Max 50°C for vertical mounting; limited I/O points at 60°C |
| Classe de protection | IP20 | Standard industrial protection, to be installed inside control cabinet |
| Dimensions | 110×100×75mm | Width×Height×Depth; weight approx. 415g |
| Real-Time Clock | Intégré, backup time 480h | Typical accuracy ±60 seconds/month at 25°C |
2.2 Memory & Performance
| Paramètre | Spécification | Description |
| Work Memory | 100Ko (program/data shared) | Non-expandable |
| Load Memory | 4Mo (integrated) + expandable via memory card | Supports SIMATIC memory card expansion |
| Bit Instruction Execution Time | Typical 0.085μs per instruction | High-speed logic processing capability |
| Word Instruction Execution Time | Typical 1.7μs per instruction | — |
| Floating-Point Operation Time | Typical 2.3μs per instruction | — |
| Max Expandable Modules | 3 module de communication + 1 signal board + 8 signal modules | Flexible system configuration expansion |
2.3 Integrated I/O
| I/O Type | Quantité | Spécification | Fonctions spéciales |
| Entrée numérique (DEPUIS) | 14 points | 24À DC, configurable delay 0.2-12.8ms | 6 points support high-speed counting (3×100kHz + 3×30kHz) |
| Digital Output (FAIRE) | 10 points | 24À DC, 0.5A per point, max 5W lamp load | 4 points support 100kHz high-speed pulse output |
| Entrée analogique (IA) | 2 points | 0-10À DC, 10-bit resolution, input resistance ≥100kΩ | Conversion time 625μs per channel |
| Sortie analogique (AU) | 0 points | — | Realized via expansion modules |
2.4 Communication Capability
| Interface | Taper | Fonction | Supported Protocols |
| PROFINET Interface | Ethernet, 2 ports | IO Controller / IO Device, 100Mbit/s | PROFINET IO, TCP/IP, ISO-on-TCP, UDP |
| Fonction de communication | Integrated Web Server | Remote monitoring and diagnosis | MODBUS, Communication S7 (Client/Server) |
| Max Connections | 16 (dynamic allocation) | Supports simultaneous communication of multiple devices | OPC UA Server function |
2.5 Fonctions intégrées
| Fonction | Spécification | Scénarios d'application |
| High-Speed Counter | 6 chaînes, up to 100kHz | Position detection, speed measurement |
| Pulse Output | 4 chaînes, up to 100kHz | Stepper / servo motor control |
| Contrôleur PID | Soutenu | Process control, température / pressure regulation |
| Contrôle de mouvement | Up to 8-axis positioning control | Simple motion control systems |
| Alarm Input | 4 chaînes | Fault detection and processing |
- Accessory List
| Type d'accessoire | Modèle | Description | Application |
| Memory Card | 6ES7954-8LF03-0AA0 | SIMATIC MC 4MB | Program storage, data backup |
| 6ES7954-8LL03-0AA0 | SIMATIC MC 16MB | Higher capacity storage requirements | |
| 6ES7954-8LP03-0AA0 | SIMATIC MC 64MB | Complex projects, mass data logging | |
| Signal Board | 6ES7221-3BD30-0XB0 | SB 1221 4DI 24V DC | Digital input expansion |
| 6ES7222-1BD30-0XB0 | SB 1222 4DQ 24V DC | Digital output expansion | |
| 6ES7231-4HA30-0XB0 | SB 1231 1AI 13bit | Analog input expansion | |
| Module de communication | 6ES7241-1CH30-1XB0 | CM 1241 RS485 | MODBUS RTU communication |
| 6ES7243-4FX30-0XB0 | CM 1243-5 | PROFIBUS DP communication | |
| Power Supply Module | 6EP1332-1SH31 | 24V/10A DC Power Supply | Power supply for CPU and expansion modules |
| Mounting Accessories | 6ES7590-1BC00-0AA0 | Rail DIN (200mm) | Installation for CPU and modules |
| 6ES7590-1AE80-0AA0 | Terminal Module | Terminal block expansion |
- Modèles alternatifs & Comparaison entre marques
4.1 Alternative Models in Siemens S7-1200 Series
| Modèle | Principales différences | Scénarios d'application |
| 6ES7214-1BG40-0XB0 | DC/DC/RLY (Sortie relais) | Control AC loads or require dry contact output |
| 6ES7214-1HG40-0XB0 | AC/DC/RLY (AC power supply, sortie relais) | Factory AC mains power, AC load control |
| 6ES7215-1AG40-0XB0 | Processeur 1215C, expanded I/O (14DI+10DO+2AI+2AO) | More analog outputs required, medium-complex control systems |
| 6ES7214-1AG31-0XB0 | Firmware V3.1, slight functional differences | Legacy system upgrade for compatibility |
4.2 Cross-Brand Replacement Solutions
| Marque | Modèle | Similar Specifications | Principales différences |
| Schneider | M241CPU16T | 14DI+10DO+2AI, 24V DC power | Protocols: Modbus TCP/IP, Ethernet/IP |
| Rockwell | Micro850 | 16DI+10DO+2AI, 24V DC power | Programming software: Connected Components Workbench |
| Mitsubishi | FX5U-32MT/ES | 16DI+16DO, 24V DC power | Built-in Ethernet, supports CC-Link IE Field |
| Omron | CP1L-L20DT1-D | 12DI+8DO+2AI, 24V DC power | Smaller size, rentable |
- Lignes directrices de sélection & Solutions de remplacement
5.1 Key Selection Factors
| Consideration Dimension | Conseils de sélection | Configuration recommandée |
| Power Supply Type | Choose DC/DC/DC for 24V DC site power; AC/DC/RLY for AC mains | 6ES7214-1AG40-0XB0 (CC) / 6ES7214-1HG40-0XB0 (CA) |
| Type de sortie | Transistor output for DC loads; relay output for AC loads / dry contacts | Transistor: fast response for high-frequency control; Relais: high voltage withstand for AC loads |
| I/O Expansion Demand | Use this model if basic 14DI+10DO+2AI is sufficient; choose 1215C or expansion modules for more I/O | CPU 1215C or add SM 1221 / SM 1222 / SM 1231 |
| Communication Demand | Use this model for PROFINET only; add communication modules for PROFIBUS / Modbus RTU | CM 1243-5 (PROFIBUS) / CM 1241 RS485 (Modbus RTU) |
| Functional Demand | Add SM 1232 for analog output; built-in HSC/PTO fully meets high-speed counting & pulse output | 6-channel HSC up to 100kHz, 4-channel PTO up to 100kHz |
5.2 Mise à niveau & Recommandations de remplacement
- Same Series Upgrade
Larger memory (250Ko) and more I/O → Upgrade to 6ES7215-1AG40-0XB0 (Processeur 1215C)
Higher performance (0.04μs bit instruction) and stronger expansion → Upgrade to 6ES7217-1AG40-0XB0 (Processeur 1217C)
- Cross-Generation Upgrade
Higher performance, 500KB memory, more communication ports → Upgrade to S7-1500 CPU 1511C
Extreme environment (-25°C~+70°C) → Select SIPLUS S7-1200 6AG2214-1AG40-5XB0
- Function Expansion Scheme
Add analog output → Install SM 1232 2AO 0-10V DC (6ES7232-4HD30-0XB0)
Add HSC/PTO channels → Install SB 1223 2DI/2DO 24V DC (6ES7223-3BD30-0XB0)
Add communication interface → Install CM 1243-1 (PROFINET) or CM 1241 RS232
- Scénarios d'application typiques
- Petit & Medium Automation Equipment: Machines d'emballage, printing machinery, food processing equipment
- Process Control: Small production lines, Systèmes CVC, building automation
- Contrôle de mouvement: Up to 8-axis positioning for simple synchronous/asynchronous motion systems
- Distributed Control: Connect remote I/O modules via PROFINET IO to build distributed control systems
- Data Acquisition & Monitoring: Remote monitoring and data logging via built-in Web Server and OPC UA
6ES7214-1AG40-0XB0 is a well-balanced compact CPU in the Siemens S7-1200 series. Its integrated 14DI+10DO+2AI configuration meets most small and medium automation requirements. The DC/DC/DC power version is ideal for industrial 24V DC power supply environments. It supports PROFINET and multiple advanced functions including high-speed counting, pulse output and PID control, serving as a highly cost-effective automation control solution.
