What is PLC in Industrial Automation?
PLC stands for Programmable Logic Controller. It is a ruggedized computer utilized for industrial automation processes. PLC can automate a precise process, functions of machine function, or a complete production line.
The working process of PLC
The PLC collects information from linked sensors or input devices, routes the data, and prompts outputs on the basis of pre-programmed parameters.
PLC are able to check and record run-time based on the inputs and outputs. It often checks and records machine productivity or working temperature, automatically on and off processes, made alarms if a machine breaks down, and more. PLCs are a flexible and vigorous control solution, adjustable to almost all applications. Check out examples of PLC at CM Industry Supply Automation
Some of the important features that set Programmable Logic Controllers apart from microcontrollers, industrial PCs, and more industrial control solutions are:
Input/Output – The CPU of the PLC stores and programs data, but i/o modules linked the PLC to the rest of the machine; these Input/output modules offer information to the CPU and activate particular results. Input/output is either analog or digital. Input devices consist of switches, sensors, and meters. Output devices consist of lights, relays, drives, and valves. Users can blend and match an input/output of PLC to get the correct configuration for the application they are using.
Communications – Along with input and output devices, a PLC connects with different systems such as users who might wish to export application data documented by the PLC to a SCADA (supervisory control and data acquisition) system that check multiple connected devices. PLCs provide ports and communication protocols to make sure that they can communicate with different systems easily.
HMI – For interacting with the PLC in real-time, users require HMI (Human Machine Interface). These operator interfaces can be plain displays including text-readout and keypad, or big touchscreen panels like consumer electronics, however anyway, they enable a consumer to review and input information to the Programmable Logic Controller in real-time.
Advanced Features of PLC
Today the Industrial Internet of Things (IoT), and Industry 4.0 programmable controllers are set to communicate data through the Web browser, linked to databases through SQL, and also the cloud data through MQTT.
The All-In-One PLC
An All-in-One PLC put together the controller with the Human Machine Interface panel, making a compact, user-friendly automation solution. Now users are not required to establish PLC to panel communications. Also, they can program HMI design and the Ladder Logic in a sole software setting. An all-in-one way saves time, cuts down wiring, and reduces the price of buying multiple devices.
PLC Programming Method
PLC programs are often written on a computer. Later the programs are downloaded to the controller. Most of the programming software of PLC provides programming in Ladder Logic, or “C”. Ladder Logic is the conventional programming language. It imitates circuit diagrams including rungs of logic read left to right. Each rung denotes a particular action controlled by the Programmable Logic Controller, beginning with input or series of inputs that cause an output (coil). Due to its illustration nature, Ladder Logic is easy to implement than lots of different programming languages.
Recent innovations are “C” programming.
Some manufacturers of PLC use supply control programming software.
Servo motors refers to motors capable to providing accurate motion control. The servo motor system feedback senses the dissimilarity between the real and required speed or position so that the controller can change the output to correct some drift from the end position. Two fundamental types of servo motors are the positional rotation and continuous rotation.
The servo motor includes a DC motor. The DC motors turn at high rpm and extremely low torque. However, within a servo motor, there is a gears arrangement that will take the high pace of the inner DC motor and make its speed slow, while simultaneously increasing the torque. Therefore, the servo's gear design rotation speed is very slow along with high torque. Servo motor gears are often made of plastic to keep it light and to keep its costs lower. However, as servo motors are made to offer more torque for heavier work, they often utilize metal gears.
A servo motor includes an encoder, positional sensor, on the ending gear. On the basis of closed-loop control, the comparison take place by the microcontroller regarding the actual rotor position to the desired position and forms an error signal. The generated error signal are later used for generating the suitable control signal to shift the rotor to the last position. Servos that are more sophisticated even measure speed to offer more exact and smoother movement.
Positional rotation servo motors are mainly used for small-scale projects where reasonable exact positioning is required. It is considered as the most generally and cheap servo motor that rotates within a 180 degrees range. This motor not have the capability to offer speed control or continuous rotation. In addition, it has physical stops made into the gear mechanism for preventing turning further than these limits to defend the rotational sensor.
Continuous rotation servo motors can rotate clockwise or anti-clockwise continuously, at changing speeds based on the command signal.
Why you should choose a Servo Motor?
Servo motors have various advantages and are often chosen for the following reasons;
Appropriate for unkind environments
High torque ratio to inertia
An industrial PC also called embedded PC refers to a computer designed to offer a set of tasks to a machine or system on a repeatable basis with its intelligence.
Industrial PC Vs Business Computers
Industrial pc or embedded PC systems are made for utilizing in environments where customer/business-grade PC Systems are not appropriate for the application at hand – whether it be the complete performance required or nearby environmental situation. Some of the specific requirements are:-
Consistency; 24*7 and comprehensive operation
Competent thermal indulgence offered through custom system design
Operation in extensive temperatures; hot, cold, and humid extremities
Safeguarding against deprived or asymmetrical power supply
Remote location fixing was attended support is complex regarding serviceability and maintenance
Like their customer PC offset parts, industrial PCs are available in different formats and footprints like Panel PCs, motherboards, and system PCs.
Industrial PCs are made to offer repeatability of solutions usually being offered on 3-5 year life span availabilities with a substitute program running at the back. And when the computer model reaches an EOL condition – another model will mechanically restore it that’s like a footprint, and offers alike features – but with improved efficiencies through advancements in computer technology, connectivity, and a diversity of minor choices like storage or memory.
Industrial PCs are available in the guise of using dependable difficult instruction sets like x86 (Intel or AMD) or RISC (reduced instruction sets) – ARM processors.
Construction and Features of Industrial PC
All industrial PCs are based on an underlying design idea i.e. to provide a controlled environment for the mounted electronics to endure the applications they need to deal with. Their electronic parts are picked for their capability to withstand higher and lower working temperatures as compared to usual commercial parts. Here are some usual features found in industrial PCs:-
Enclosure or Metal boards
The small form features as possible to offer for dense sizing.
The enclosure includes a provision to mount within its close environment.
Wide working temperature way out such as 40 to 75°C
Substitute cooling ways like conduction, liquid, fanless (passive), and forced air (active)
Increase card maintenance and support through interfaces like M.2, mini PCI, and PCIe.
Improved EMI filtering
Improved environmental safety like high pressure, dust, moisture, whole immersion, or water spray.
Circular-MIL connectors or sealed MIL-SPEC.
Top-level power supply
I/O controlled access via access cover use
Addition of a regulator timer to retune the system mechanically in case of software lock-up
Industrial PC Repair
CM Industry Supply Automation is a supplier and repair service provider of industrial PCs and touchscreen panels. Our Industrial PC repair services are highly beneficial for the industrial automation business. Designed and made to offer consistent operation in difficult environments, our industrial PCs can withstand any condition to offer you maximum productivity.
Get all industrial automation products sales & repair services. Call us for Lenze Drive, Keb Drive, Siemens, Allen-Bradley equipment sales and repair services.
CM Industry Supply Automation are supplier and repair services provider of drives, VFD drive (variable frequency drive), VSD (variable speed drive), inverter, frequency converter, ac drive, servo drive, servo motor, industrial drives, industrial drives and controls, industrial drives and applications, high-power servomotor, high torque DC servo motor, high-power servo drives, high frequency drives, of some well-known brands that include:
Siemens Drive, Rexroth Drive, Elau Drive, Vacon Drive, Baumuller drive, Danfoss drive, Parker drive, Mitsubishi VFD drive, Sprint drive device, Allen Bradley drive, ABB drive, Rockwell VFD Drives, AB Powerflex drive, Kendrion, Intorque, Ntorq company Yaskawa drive, Fanuc drive, Weg drive, Toshiba drive, Hitachi drive, Gefran servo drive, INVT servo drive, INVT drive, INVT Servo Drive, Inovance drive & more.
Lenze, KEB, Siemens, Rexroth, Schneider Electric - Elau, Vacon, Baumuller, Danfoss, Parker, Mitsubishi, Sprint, Allen Bradley, ABB, Rockwell, Powerflex, Kendrion, Intorque, Ntorq, Yaskawa, Fanuc, Weg, Toshiba, Hitachi, Gerfan, INVT, Innovance, Bharat bijlee ,Balluf, Baumer, Bonfigilio, Contrinex, Panasonic, Heidehain, Hengsteler, Moxa, Motovario, Proface, Pilz, Pizzato, Rosemount, Helmholtz, Delta, Altivar, NIDEC, Control Technic, VLT FC, Kollmorgen, Innovance, Jetter, Crompton,HPB Motion, Techmation, Emotron,Beckhoff, Stober.
Textile control panel, Stenter Machine, Dying Machine, Merchinzer Machine, Sizing Machine, Flat Belt Machine, Rotary Printing Machine, Singing Machine, Ball Warping Machine, Indigo dyeing Machine, Rope Dyeing Machine, Weaving Sheet Dyeing Machine, Weaving sizing cooker system, Processing shrinking range machine, processing drying range machine, processing desize and mercerizing range, processing cold pad batch.
Printing machine and packaging machine control panel, rotary printing machine, flat belt printing machine, NC cutter, Corrugation Sheet Cutter, Steel Sheet cutter, Die Cutting Systems, Winders/Re-winders
Steel Control Panel, Bar Rolling Mills, Automatic Cooling Bed, Sponge Iron & Casting Applications, Flat Rolling Mill Applications, Paper & Plastic Applications, Flat Rolling Mill Applications, Flat Rolling Mill Applications, Pilger mill:
Machine tools control panel, CNC Machine, VMC Machine, Hydralic press Machine, Servo Press Machine, Automotive Machine CONTROL PANEL, Injection Molding Machine, Pipe Extrusion Machine, Wire Extrusion Machine, Wire Drawing Machine, Blow Molding Machine
Pharma machine control panel, filling machine, Blister packaging machine, Bottle labeling machine, Tablet press machine
Vision Camera, Absence/presence detection, Automated vision testing and measurement, Bar code reading, Color verification, Defect detection, Optical character recognition and verification, Part verification, Pattern matching, Sorting, Traceability, Vision guided robots
VFD Control Panel, PLC Control Panel, SCADA Control Panel, Electric Control Panel, Retrofiting solution, PCC Control, MCC Control Panel, Vision Camera, Laser Sensor, Electrolux washing machine