Siemens S7-1200 first level agent

Siemens S7-1200 first level agent

Adhering to the work policy of "people-oriented technology leading customer satisfaction and continuous improvement", we are committed to product development, engineering support, system integration, and sales in the field of industrial automation control. We have rich experience in the application and practice of automation products, as well as strong technical strength, especially in PLC complex control systems, transmission technology applications, servo control systems, CNC spare parts, human-machine interfaces, and network/software applications. For several years, Hunan Fadi Intelligent Technology Co., Ltd
In the long-term close cooperation with the automation and drive department of German company SIEMENS, a good collaborative relationship has been established, and the business in programmable controllers and AC/DC transmission devices has grown exponentially year by year, providing SIEMENS technology and the best automatic control solutions for our customers.

The company's main business:

1. SIMATIC S7 series PLC, S7200, S71200, S7300, S7400, ET200
2. Logic control module logo! 230RC, 230RCO, 230RCL, 24RC, 24RCL, etc, ,,
3. SITOP series DC power supply 24V DC 1.3A, 2.5A, 3A, 5A, 10A, 20A, 40A
4、HMI 触摸屏 TD200 TD400C TP177,MP277 MP377 、 Smart1000IE、 Smart700IE
5. Soft starter: 3RW30 3RW40 3RW44
6. Inverter: MM420 MM430 MM44 G120 S120
7. The S120 series includes: 6SN 6FC 6FX 6SL 6AU 1FT 1FK 1PH 6SE70

Main products: Siemens S7-200 PLC S7-300 PLC S7-400 PLC S7-1200 PLC 6ES5 ET200 human-machine interface touch screen frequency converterWuhu recycles Siemens modulesImplementing data communication through Multi Point Interface (MPI)

Sales Attitude: Quality assurance, honest service, timely delivery!

Sales Objective: Creating value for customers is our eternal goal!

Service Description: Spot delivery to all parts of the country including tax (13) and shipping fee!

Product Quality: Original genuine product, *!

Product Advantages: Professional sales with small profits and high sales volume, good reputation, short delivery time, large quantity of spot goods, and thoughtful service!

With professional technical expertise, we are committed to introducing industrial automation equipment and instruments, providing professional automation product sales and complete system solutions for our customers. We are a professional automation product and process instrumentation service provider.

A servo mechanism is an automatic control system that enables the output controlled variables such as the position, orientation, and state of an object to follow any changes in the input target (or given value). Servo mainly relies on pulses for positioning. Basically, it can be understood as follows: when a servo motor receives one pulse, it will rotate the corresponding angle of one pulse to achieve displacement. Because servo motors themselves have the function of emitting pulses, every time a servo motor rotates an angle, it will emit a corresponding number of pulses. This corresponds to the pulses received by the servo motor, or the motor can be divided into brushed and brushless motors. Brushed motors have low cost, simple structure, large starting torque, wide speed range, easy control, and require maintenance. However, maintenance is inconvenient (such as replacing carbon brushes) and generates electromagnetic interference, which has environmental requirements. Therefore, it can be used in cost sensitive general industrial and civilian applications.
Brushless motors have small size, light weight, high output, fast response, high speed, and small inertia,

If students have used Siemens S7-200 SMART series PLC, they should know that PLC provides various modules and plug-in boards for expanding CPU functions, and S7-1200 series PLC is no exception. #PLC learning#

The expansion modules of S7-1200 series PLC include three categories: signal module, signal board, and communication module. The signal module is extended on the right side of the CPU, the signal board is extended directly above the CPU, and the communication module is extended on the left side of the CPU. Below is a brief introduction to the modules of the S7-1200 series.

The analog IO signal module includes the following types:SM 1231 analog input module, SM 1232 analog output module, SM 1231 thermocouple and thermistor analog input module, SM1234 analog input and output hybrid module. SM 1231, SM 1232, and SM 1234 are used to receive or output standard voltage and current signals, while SM 1231 is used for temperature acquisition with thermal resistors or thermocouples.

2. Signal board

The CPU supports the expansion of signal boards, which are installed in an embedded manner directly above the CPU and do not take up space. For example, when we need to expand a small number of IO points, we can choose to expand the digital IO signal board. In addition to digital IO signal boards, there are also analog signal boards, which generally have models starting with SB. In addition, there is a communication board CB that can add other communication ports to the CPU. The battery board BB can provide long-term real-time clock backup.

3. Communication module

The communication related modules include the Communication Module (CM) and Communication Processor (CP), which are used to increase the communication interface of the CPU. For example, the CM module can support PROFIBUS or RS232/RS485 (supporting PtP communication, Modbus communication, or USS communication) or AS-i master communication.

The CP module can provide other types of communication functions, such as connecting to the CPU through GPRS, IEC, DNP3, or WDC networks. The communication module CM or communication processor CP of S7-1200 CPU is extended on the left side of the CPU (or connected to the left side of another CM or CP), and supports the extension of up to three CMs or CP.

The communication module CM includes CM1241 communication module, CM1243-5 PROFIBUS-DP master station module, CM1242-5 PROFIBUS-DP slave station module, and the communication processor CP includes CP1242-7 GPRS module and CP1243-1 Ethernet communication processor.

Taking the CM1241 communication module as an example, it is used to expand RS232 or RS485 ports for serial communication. This module can support ASCII protocol, MODBUS protocol, and USS protocol.

Of course, in addition to this module's ability to expand RS232 or RS485 communication interfaces, we can also use the CB signal board mentioned earlier, which gives us multiple options.

1、 Different designs

1. PLC200: Adopting a structured design. The calculation speed is lower than zhiPLC300.

2. PLC300: Adopting a modular structure, it has a high-speed (0.6~0.1 μ daos) instruction operation speed. Floating point operations have effectively implemented more complex arithmetic operations.

2、 Different operating methods

1. PLC200: does not have human-machine interface services.

2. PLC300: A software tool with a standard user interface that facilitates users to assign parameters to all modules; Convenient human-machine interface services.

3、 Different operating systems

1. PLC200: It is equipped with an operation mode selection switch, which can be pulled out like a key. When the key is pulled out, the operation mode cannot be changed, which can prevent illegal deletion or rewriting of user programs.

S7-1200PLC ordering model list:
Central processing unit
Standard CPU
CPU 1211C
CPU 1212C
CPU 1214C
CPU 1215C
SIPLUS standard CPU
Signal module
Digital quantity module
SM 1221 Digital Input Module
SB 1221 Digital Input Module
SM 1222 Digital Output Module
SB 1222 Digital Output Module
SM 1223 Digital Input/Output Module
SB 1223 Digital Input/Output Module
Signal module (extended temperature range)
Digital input module SIPLUS SM 1221 signal module
Digital output module SIPLUS SM 1222 signal module
Digital input/output module SIPLUS SM 1223 signal module
SIPLUS SB 1223 signal board
Analog module
SM 1231 Analog Input Module
SB 1231 Analog Input Module
SM 1232 Analog Output Module
SB 1232 Analog Output Module
SM 1234 Analog Input/Output Module
SM 1231 Thermocouple Module
SB 1231 Thermocouple Signal Board
SM 1231 RTD Signal Module
SB 1231 RTD Signal Board
SIPLUS analog module
Analog input module SIPLUS SM 1231 signal module
Analog output module SIPLUS SM 1232 signal module
Analog input/output module SIPLUS SM 1234 signal module
SIPLUS SB 1232 signal board
SIPLUS model
Special modules
SIM 1274 emulator
Battery board BB 1297
communication
CM 1241 Communication Module
CB 1241 Communication Board RS485
CM 1242-5
CM 1243-2
CM 1243-5
CSM 1277 Non Managed Type
CP 1242-7 GPRS module
communication
CM 1241 Communication Module (Extended Temperature Range)
power supply
1-phase, 24 V DC/2.5 A (PM 1207)
SIPLUS power module
SIPLUS PM 1207 power supply
Operator monitoring
Simplified Panel - Standard
SIPLUS Basic Panel
software
STEP 7 Basic
STEP 7 (TIA Portal)
S7-1500
Central processing unit
Standard CPU
Signal module
Process module
communication module
connection system
power supply
Attachment

The Siemens S7-1200 series consists of the following modules:

3 controllers with different types of graded performance, can be used as wide range AC or DC controllers
2 signal boards (analog and digital) for low-cost modular controller expansion directly on the CPU, with unchanged installation space
13 different digital and analog signal modules
Two communication modules (RS232/RS485) for communication through point-to-point connections
Ethernet switch with 4 ports, used to perform many different network topologies
PS 1207 stable power supply device, 115/230 V AC line voltage, 24 V DC rated voltage
Mechanical characteristics
Durable and sturdy compact plastic casing
Easy to access connection and control components, protected by a front panel
Detachable connection terminals, also suitable for analog or digital expansion templates
Device Function
Compliant with standards:
SIMATIC S7-1200 complies with VDE, UL, CSA, and FM standards (Class I, Cat 2; Hazardous Area Groups A, B, C, and D, T4A). The quality management system used in production has passed ISO 9001 certification
communication
SIMATIC S7-1200 is equipped with different communication mechanisms:

Integrated PROFINET interface
Implementing point-to-point connections through communication templates
PROFINET interface
The integrated PROFINET interface allows for the following communication:

programmer
Human Machine Interface (HMI) devices
Other SIMATIC controllers
Support the following protocols:

TCP/IP
ISO-on-TCP
S7 Communication
The following devices can be connected:

Communicate between on-site PG programming equipment and PC through standard CAT5 cables.

Design and functionality
Optional module
Modularize 5 different CPUs within the performance range, with comprehensive basic functions and integrated Freeport communication interface
A series of expansion modules for various functions:
- Digital/analog extension, upgradable to specific requirements, serving as PROFIBUS communication for slave stations
AS Interface communication as the main station
- Accurate temperature measurement
- Positioning
- Remote diagnosis
- Ethernet/Internet communication
－SIWAREX MS
weighing module
HMI function
STEP 7-Micro/WIN software with Micro/WIN additional instruction library
Remarkable systems engineering - currently characterized by solutions for various sizes and requirements for complete automation tasks
Main Features
Highlight the use of memory cards for data recording, recipe management, STEP 7-Micro/WIN project savings, and file storage in various formats
PID automatic tuning function
Two built-in serial ports for expanding communication options, such as compatible with devices from other manufacturers (CPU 224 XP, CPU 226)
CPU 224 XP with built-in analog input/output

Siemens PLC module

There are many types of Siemens PLC products. The different models of PLCs correspond to different structural forms, performance, capacity, instruction systems, programming methods, prices, etc., and their applicable situations also have their own emphases. Therefore, the rational selection of PLC is of great significance for improving the technical and economic indicators of PLC control systems.

Selection of Siemens PLC models
The selection of Siemens PLC should be comprehensively considered from the aspects of PLC model, capacity, I/O module, power module, special function module, communication networking capability, etc. The basic principle for selecting PLC models is to strive for a cost-effective performance while meeting functional requirements and ensuring reliability and easy maintenance. When choosing, the main considerations should be the reasonable structural type, installation method selection, corresponding functional requirements, response speed requirements, system reliability requirements, and the possibility of a unified model.

1、 Reasonable structural form
PLC mainly has two structural types: integral and modular.
The average price of each I/O point in a monolithic PLC is cheaper than that of a modular one, and its volume is relatively small. It is generally used in small control systems with relatively fixed system processes; The function expansion of modular PLC is flexible and convenient, with a wide range of choices in terms of I/O points, the ratio of input points to output points, and the types of I/O modules. It is also easy to maintain and is generally suitable for more complex control systems.

2、 Selection of installation method
The installation methods of PLC systems include centralized, remote I/O, and distributed networking of multiple PLCs.
Centralized system does not require setting up remote I/O hardware drivers, resulting in fast system response and low cost; Remote I/O is suitable for large systems with a wide range of device distribution. Remote I/O can be installed near on-site devices with short connections, but additional drivers and remote I/O power supplies are required; The distributed networking of multiple PLCs is suitable for situations where multiple devices are independently controlled and need to interact with each other. Small PLCs can be selected, but communication modules must be added.

3、 Corresponding functional requirements
Generally, small (low-end) PLCs have functions such as logic operation, timing, and counting, which can be met for devices that only require switch control.
For systems mainly controlled by switch quantities with a small amount of analog control, an enhanced low-end PLC with A/D and D/A conversion units, addition and subtraction arithmetic operations, and data transmission functions can be selected. For complex control, it is required to implement functions such as PID operation, closed-loop control, and communication networking. Depending on the size and complexity of the control, mid-range or high-end PLCs can be selected. However, mid to high end PLCs are more expensive and are generally used in large-scale process control and distributed control systems.

4、 Response speed requirements
PLC is a universal controller designed for industrial automation, and the response speed of PLCs of different grades can generally meet the needs within their application scope. If a PLC needs to be used across different ranges, or if certain functions or signals have special speed requirements, the response speed of the PLC should be carefully considered. PLCs with high-speed I/O processing capabilities or PLCs with fast response modules and interrupt input modules can be selected.

5、 Requirements for system reliability
The reliability of general system PLCs can be met. For systems with high reliability requirements, consideration should be given to whether to use redundant systems or hot standby systems.

6、 Try to unify the models as much as possible
An enterprise should strive to achieve uniformity in PLC models. Mainly considering the following three issues:
1) The models are unified, and their modules can serve as backups for each other, facilitating the procurement and management of spare parts.
2) The unified model, with similar functions and usage methods, is conducive to the training of technical strength and the improvement of technical level.
3) Unified model, universal external devices, shareable resources, easy to network communication, and easy to form a multi-level distributed control system when equipped with an upper computer