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Siemens 6ES7212-1HE40-0XB0 SIMATIC S7-1200 CPU 1212C
The Siemens 6ES7212-1HE40-0XB0 is a SIMATIC S7-1200 CPU 1212C with a DC/DC/Relay configuration, built for machines that need relay outputs instead of standard transistor outputs. It comes with a built-in power supply, onboard digital and analog I/O, and a PROFINET port, so it works as a standalone controller without extra modules. The relay outputs make it a strong fit for applications switching AC loads or driving devices like contactors, solenoids, and indicator lamps directly.
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Categories: Programmable Logic Controller (PLC)
Tags: SIMATIC S7-1200 CPUs
Description
The Siemens 6ES7212-1HE40-0XB0 SIMATIC S7-1200 CPU 1212C DC/DC/Relay runs on a 24V DC power supply for the CPU itself, but uses relay outputs rated for both AC and DC loads, giving it more flexibility than transistor-output models when connecting to field devices. It comes with 8 digital inputs, 6 relay outputs, and 2 analog inputs built directly into the unit, so basic machines can be wired and running without buying separate I/O modules. This CPU is programmed using TIA Portal (STEP 7 V14 or higher) and supports LAD, FBD, and SCL programming languages.
The CPU includes a PROFINET port for network communication, supports open Ethernet protocols such as TCP/IP and Modbus, and has a built-in web server for remote diagnostics. It also comes with useful onboard functions such as high-speed counting, frequency measurement, and a PID controller for closed-loop process control. It can be expanded with 1 signal board, 2 signal modules, and up to 3 communication modules, giving room to grow the system without switching to a larger CPU.
QTech Safety is a leading supplier of Siemens 6ES7212-1HE40-0XB0 SIMATIC S7-1200 CPU 1212C in Ireland, offering competitive prices and fast worldwide shipping across United Kingdom (UK), Germany, France, Italy, Spain, United States USA, Canada, Mexico, and Western Australia (Perth). Buy Siemens PLC Modules from one of Ireland’s most trusted industrial safety equipment suppliers.
Features of Siemens 6ES7212-1HE40-0XB0 SIMATIC S7-1200 CPU 1212C
- Compact all-in-one design with built-in power supply, inputs, and outputs
- Relay outputs rated for both AC and DC loads, ideal for switching contactors and solenoids
- 8 built-in digital inputs and 6 built-in relay outputs
- 2 built-in analog inputs (0 to 10V)
- Onboard PROFINET port for easy network connection
- Built-in web server for remote diagnostics and monitoring
- High-speed counting up to 100 kHz on multiple channels
- Built-in PID controller for process control loops
- Reverse polarity protection on power supply
- Expandable with 1 signal board, 2 signal modules, and up to 3 communication modules
- Real-time clock with battery-free backup for up to 480 hours
- Programmable using LAD, FBD, and SCL in TIA Portal
Technical Specifications of Siemens 6ES7212-1HE40-0XB0
- Product type: CPU 1212C DC/DC/Relay
- Programming software: STEP 7 V14 or higher (TIA Portal)
- Rated voltage: 24V DC
- Voltage range: 20.4V to 28.8V DC
- Reverse polarity protection: Yes
- Current consumption: 400 mA (CPU only), up to 1,200 mA with all expansion modules
- Inrush current: Up to 12 A at 28.8V DC
- Power loss: 9 W typical
- Program/data memory: 100 KB
- Load memory: 2 MB integrated, expandable with SIMATIC Memory Card
- Retentive memory: Up to 10 KB
- Backup: Maintenance-free, battery-free
- Bit operations: 0.08 µs per instruction
- Word operations: 1.7 µs per instruction
- Floating point arithmetic: 2.3 µs per instruction
- Digital inputs: 8, integrated
- High-speed counting inputs: 4 channels
- Rated input voltage: 24V DC
- Max input cable length: 500 m shielded / 300 m unshielded
- Digital outputs: 6, relay type
- Switching capacity: 2 A resistive load per output
- Lamp load rating: 30 W (DC) / 200 W (AC)
- Relay mechanical life: 10 million operations
- Relay life at rated load: 100,000 operations
- Max output cable length: 500 m shielded / 150 m unshielded
- Analog inputs: 2
- Analog input range: 0 to 10V DC
- Analog input resolution: 10-bit
- Analog outputs: 0 (none built in on this model)
- Interface type: PROFINET (Ethernet)
- Number of ports: 1
- PROFINET IO Controller: Yes
- PROFINET IO Device: Yes
- Max transmission rate: 100 Mbit/s
- Protocols supported: TCP/IP, ISO-on-TCP, UDP, Modbus, PROFIBUS (with CM 1243-5), AS-Interface (with CM 1243-2)
- Max connectable IO devices: 16
- Web server: Yes, with user-defined web pages
- Counters: 4, up to 100 kHz
- Frequency measurement: Yes
- Position-controlled positioning axes: Up to 8
- Positioning via pulse-direction interface: Up to 4, requires SB 1222 signal board
- PID controller: Yes
- Alarm inputs: 4
- Hardware clock: Yes
- Backup time: 480 hours typical
- Clock accuracy: ±60 seconds/month at 25°C
- Digital input isolation: 500V AC for 1 minute
- Digital output isolation: Relay-based (inherently isolated)
- Degree of protection: IP20
- Approvals: CE, UL, cULus, FM, RCM, KC, Marine approval
- Operating temperature: -20°C to 60°C (horizontal), -20°C to 50°C (vertical)
- Storage temperature: -40°C to 70°C
- Humidity: Up to 95%, non-condensing
- Dimensions (W x H x D): 90 x 100 x 75 mm
- Weight: 385 g approx.
Applications
The Siemens 6ES7212-1HE40-0XB0 SIMATIC S7-1200 CPU 1212C is commonly used in:
- Machine control requiring relay-driven output switching
- Direct control of contactors, solenoids, and motor starters
- Mixed AC/DC load switching applications
- Small to mid-size industrial automation panels
- Retrofit projects replacing relay-logic control systems
- Lighting and indicator control circuits
- HVAC and building automation with relay-based actuators
Why Choose QTech Safety?
At QTech Safety, we’re more than just a safety supplier we’re your trusted partner in workplace protection and compliance.
Here’s why companies across UK and Ireland (EU) choose us for safety products and training:
- Comprehensive Range of Safety Equipment:
From gas detection and PPE to industrial safety tools, we offer one of the widest selections of trusted brands all at competitive Irish market prices. - Test & Measurement Instruments You Can Trust:
We supply a wide range of test and measurement instruments from the most leading and trusted brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity sensors, and other advanced measurement tools to support accurate diagnostics, condition monitoring, calibration, and maintenance applications. - Expert Health & Safety Training:
We provide professional health and safety training programmes designed to help your workforce stay compliant and confident on the job. - Fast, Reliable Delivery Worldwide:
Whether you’re in Texas United States or Perth Western Australia, our fast delivery service ensures you get your safety equipment quickly and efficiently. - Trusted by European Businesses:
We’re proud to support industries across Europe (UK) with certified safety solutions, expert advice, and responsive customer service.
We Ship Worldwide
At QTech Safety, we supply industrial sensors and instrumentation across Ireland, offering fast and reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers in Europe, North America, and Australia.
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