PLC controllers - industrial plc

UN Series PLC Controllers

Perfectly compatible with Siemens PLC

Industrial grade/Strong and durable

High cost-effectiveness

Rich product range:Mini/Micro/Medium/Large

Easy to maintain

Reliable plc logic controller

Seamlessly compatible with Siemens s7 1200 PLC

Modular design PLC

Flexibly match PLC

Small PLC

Economic PLC

What is programmable logic controller(plc)?

A programmable logic controller(plc) is a digital operation electronic system designed for use in industrial environments.

It uses a programmable memory to store and execute logic operations, sequence control, timing, counting and arithmetic operations, and controls various types of machinery or production processes through digital and analog inputs and outputs.

PLC controllers and its related peripherals should be designed to be easy to form an integral part of the industrial control system and easy to expand its functions.

Unimat's history of developing PLC controllers

Unimat was founded in 2005. Its first self-developed product was the UN300 series PLC. PLC300 adopts a modular design. Users can add and change modules according to their needs. It is very flexible and can meet different control needs. After it was launched on the market, it was well received by the market. Later in 2007, the UN 200 series PLC was launched. PLC200 is a small-sized PLC with compact size, space saving, simplified overall layout, and easy installation. Due to its small size, there are fewer installation accessories and connecting cables, which reduces the overall cost, but the performance is still strong. In the subsequent development process, Unimat has also continuously enriched its product line and launched a series of products that meet customer needs and are popular in the market, including: UN 1200 PLC, UN 120 PLC, HMI, all-in-one machine, etc. Among them, PLC1200 is seamlessly compatible with S7 1200, affordable, and very popular.

Advantages and Disadvantages of Using industrial plc

Industrial plc has a relatively long history of development, and various manufacturers have also improved and upgraded it in the process of product renewal, but there are still some common advantages and disadvantages in the use of PLC:

PLC controllers advantages:

(1) High integration: PLC, input and output modules, power supply and other key components are integrated in a compact device, reducing the need for external connections and wiring, thereby simplifying the installation and debugging process of the system.

(2) Space saving: Due to its high integration, PLC occupies a small space and is suitable for places with limited space.

(3) Easy maintenance: Since all key components are integrated together, the maintenance and replacement of PLC becomes simpler and faster.

(4) Cost-effectiveness: For small or medium-sized applications, PLC may be a more cost-effective solution because it reduces the cost of purchasing and installing multiple components separately.

PLC controllers disadvantages:

(1) Limited scalability: Compared with modular PLCs, the scalability of PLCs may be limited. Once a device reaches the limit of its processing power or input and output points, it may need to be replaced as a whole rather than simply adding new modules.

(2) Low degree of customization: Since PLCs are pre-integrated and pre-configured, their degree of customization may be low. For applications that require specific functions or special configurations, it may be difficult to meet all requirements.

(3) Performance limitations: In some applications with high performance requirements, the processing power of the PLC may not be sufficient to meet the needs. These applications may require a higher-level PLC or distributed control system.

Unimat PLC controllers Advantages：

Unimat has been focusing on the industrial automation industry for 20 years and has invested a lot of R&D funds in the development of PLC. Our PLC can almost meet the different needs of customers and can be designed individually according to customer needs. In the existing PLC product series, each series has targeted solutions to industry pain points, such as our PLC300 adopts a modular design, PL 200 is small in size, and the PL 1200 series can be seamlessly compatible with S71200, etc.

Industrial plc application:

PLC is widely and deeply applied in the field of industrial automation, bringing revolutionary changes to all walks of life. The following are seven common areas:

Manufacturing: PLC shines in production line control. From assembly to packaging, every step is accurate and correct, improving efficiency and flexibly responding to various production needs.

Automation process: Whether it is chemical, electricity or water treatment, PLC can intelligently execute control operations through sensor input to make the process more stable.

Building automation: lighting, air conditioning, elevators, PLC is available, realizing intelligent building management, energy saving and consumption reduction, and improving living comfort.

Transportation and logistics: traffic signals, rail transit, logistics and warehousing, PLC makes transportation more efficient and safe.

Agricultural automation: greenhouse control, irrigation system, PLC helps modern agriculture, and technology changes agricultural ecology.

Energy management: power distribution, grid control, PLC plays a big role in energy management and promotes the development of green energy.

PLC controllers application solutions provided by Unimat：
As of 2024, Unimat PLC has enabled multiple fields, among which the better projects are:
1. Water treatment industry - constant pressure water supply solution: using Unimat smart PLC and uh507 HMI
2. HVAC industry - Xiaomi automobile factory heating solution: using Unimat 124XP PLC and UH407 HMI
3. HVAC industry - constant temperature and humidity operating room central air conditioning control system solution: using Unimat UN 224+TD400+UN231+UN232
4. Packaging industry - non-woven fabric slitting machine application: using Unimat CPU224-2Q, EM223, EM231, EM232
5. Construction industry - concrete mixing station: using Unimat UN 200 SMART and 10’ HMI
6. Petroleum transportation industry - oil and gas mixed transmission control: using Unimat SMART CPU SR20 and UBOX;
7. Flue - cured tobacco industry: UN126PLC is used
8. Breeding industry - smart hatchery: Unimat UN 200 SMART PLC and UH510 HMI are used
9. Agriculture - smart agricultural greenhouse: Unimat UN124-2DD23-0XB8 and IoT screen UH507W are used
10. Metallurgical industry - bag dust removal equipment: Unimat 200 and 300 plc are used
If you are also interested in the cases we have done before, please feel free to contact us.

How to choose a PLC controllers?

When you need a PLC, what can you consider to choose the right PLC?

Home page, you need to clearly understand the needs of the control system, including the number and type of equipment to be controlled, the complexity of the control logic, etc.

Secondly, consider the environmental factors of using the PLC;

Third, consider the output type of the PLC, and other factors include storage capacity, response time, networking function, manufacturer's technical support and service, cost-effectiveness, and special needs of some special industries.

If you are not sure, you are also welcome to consult our engineers online, and we will assist you in choosing the right PLC.

What are the components of PLC structure?
The structure of programmable controller varies, but the general principle of its composition is basically the same, all of which are structures with microprocessors as the core. It is usually composed of several parts such as central processing unit (CPU), memory (RAM, ROM), input and output unit (I/O), power supply and programmer.

How does industrial plc work?

Industrial plc uses a cyclic scanning mode. In PLC, user programs are stored in order. The CPU starts to execute the program from the first instruction until it encounters the end character and returns to the first instruction, and repeats this cycle over and over again.The scanning process of PLC is divided into several stages: internal processing, communication operation, program input processing, program execution, and program output. The time required for a full process scan is called a scanning cycle. When the PLC is in a stopped state, only internal processing and communication operation services are performed. When the PLC is in a running state, it keeps scanning from internal processing, communication operation, program input, program execution, and program output.

Perfectly compatible with Siemens PLC

Unimat PLC controllers SERIES