Siemens SIMATIC S7-1200 Programmable PLC Controller

SIMATIC S7-1200 brings perceptible freedom - now with better connectivity and greater flexibility

The SIMATIC S7-1200 adopts the new firmware version 4.4, which not only expands the communication function of the SIMATIC S7-1200, but also improves the overall data transmission performance, such as the data transmission performance between other controllers and upper level systems or cloud based systems (ERP, SCADA, MindSphere, etc.). Its application fields are diverse, ranging from industry to agriculture, and even to infrastructure construction, to name just a few.

Using OPC UA Data Access as a server not only enables standardized horizontal and vertical communication, but also meets various requirements of industry standards. The Siemens OPC UA Modeling Editor (SiOME) can easily complete adjustment tasks and match industry-specific supporting standards.

Supporting cloud connectivity, data can be saved and analyzed in systems such as Siemens MindSphere, which not only ensures the efficiency of the data analysis process, but also enables preventive maintenance.

The secure email sending function (attachments can be added) makes it possible to automatically transmit sensitive machine data.

The SIMATIC S7-1200, with widely expanded communication capabilities, not only supports the use of various field devices, but also enables data exchange with other controllers and forwarding of data to any management system.

Overview of Siemens SIMATIC S7-1200 Technology

Siemens Controller Family Products

The Siemens controller series is a complete product portfolio, including a book style mini controller logo from high-performance programmable logic controllers! To PC based controllers, no matter how demanding the requirements are, they can meet them. Based on specific application needs and budgets, they can be flexibly combined and customized (a series of controller family products can meet your different applications and needs).

The SIMATIC S7-1200 small programmable controller fully meets the system requirements of small and medium-sized automation. The system and controller were fully considered during the research and development process The requirement for seamless integration and efficient coordination between human-machine interface and software. The launch of the SIMATIC S7-1200 series marks Siemens' expansion of its product range, representing the future direction of small programmable controllers. Siemens will continue to innovate and lead the trend of automation.

SIMATIC S7-1200

The SIMATIC S7-1200 provides a solution with integrated PROFINET interface and powerful integrated process functionality, especially meeting the completely different automation needs in various applications.

Siemens SIMATIC S7-1200 Appearance and Installation

1. Easy and convenient installation

All SIMATIC S7-1200 hardware comes with built-in mounting clips that can be easily installed on a standard 35mm DIN rail. These built-in mounting clips can bite into a protruding position to provide mounting holes when backplate suspension installation is required.

The SIMATIC S7-1200 hardware can be installed vertically or horizontally. These features provide users with maximum flexibility in installing PLCs, while also making the SIMATIC S7-1200 an ideal choice for many application scenarios.

2. Detachable terminals

All SIMATIC S7-1200 hardware is equipped with detachable terminal blocks. Therefore, only one wiring is needed, saving valuable resources during the project initiation and debugging phases

Time. In addition, it also simplifies the process of replacing hardware components.

3. Compact structure

All SIMATIC S7-1200 hardware is designed to be compact in order to save installation space in the control cabinet. For example, the width of CPU 1215C is only 130 mm, the width of CPU 1214C is only 110 mm, and the widths of CPU 1212C and CPU 1211C are also only 90 mm. The communication module and signal module are also very compact, which greatly saves space in this compact modular system, providing you with the highest efficiency and flexibility during installation.

SIEMENS SIMATIC S7-1200 Scalable and Flexible Design

1. Signal board

A signal board can be connected to all CPUs, allowing you to customize CPUs by adding digital or analog input and output channels to the controller without changing their size. The modular design of the SIMATIC S7-1200 controller allows you to accurately design the controller system according to actual application requirements.

2. Signal module

Up to 8 signal modules can be connected to the CPU with the highest expansion capability to support more digital and analog input/output signal connections.

S7-1200 memory

Provide up to 150 KB of shared working memory for user instructions and data. It also provides up to 4MB of integrated loading memory and 10 KB of power-off holding memory. SIMATIC memory cards are optional and can be used as programming cards, transfer cards, and firmware update cards with different settings. It allows for easy transfer of programs to multiple CPUs. This card can also be used to store various files or update the firmware of the controller system. (Not applicable to V3.0 and later versions)

S7-1200 communication module

The SIMATIC S7-1200 CPU can add up to three communication modules, supporting PROFIBUS master-slave communication, RS485 and RS232 communication modules for point-to-point serial communication and l/0 connection to the main station. Extended instructions or library functions, USS drivers were used for the configuration and programming of this communication

The active protocol, Modbus RTU master and slave protocols are all included in the SIMATIC STEP 7 Basic engineering configuration system.

Siemens SIMATIC S7-1200 Advantages

1. Smart devices

Through simple configuration, S7-1200 control

The device can perform read and write operations on the l/0 mapping area

Implement distributed/0 applications with master-slave architecture.

CPUs can be connected to different network systems.

2. Integrated process

High speed input

The SIMATIC S7-1200 controller comes with up to 6 high-speed counters. Among them, 3 inputs are 100 kHz and 3 inputs are 30 kHz, used for counting and measurement.

High-Speed Output

The SIMATIC S7-1200 controller integrates four 100kHz high-speed pulse outputs for speed and position control of stepper motors or servo drives. All four outputs can output pulse width modulation signals to control motor speed, valve position, or heating element duty cycle using PLCopen motion control commands.

The SIMATIC S7-1217C supports 6 high-speed counting channels, with 4 channels supporting up to 1MHz and PWM/PTO outputs supporting up to 1MHz.

Speed and position control PLCopen motion control command

PLCopen is an international motion control standard

● Support absolutely Relative motion and online speed changing motion

● Support finding the origin and climbing control

● Used for simple start-up and trial operation of stepper or servo motors

● Provide online detection

pid control

The SIMATIC S7-1200 controller offers up to

16 PID control circuits with automatic adjustment function,

Used for simple closed-loop process control.

3. Simple remote control application

The new communication processor CP 1242-7 can simultaneously monitor and control the distributed S7-1200 units through a simple HUB (hub) or mobile phone network or the Internet (Internet).