Complete your PLC monitor and control with Rheonics inline viscosmeter and density meter

PLC, or Programmable Logic Controller, is a key component in industrial automation and control systems. It serves as a digital computer that is designed to control and monitor different processes within manufacturing environments. PLCs are widely used across various industries to enhance efficiency, improve productivity, and ensure reliable operation.

Rheonics online density meters and viscometers are available as probes and flow-through systems for installation in tanks, process lines and reactors. The sensor electronics is built with various industrial communication protocols available, allowing for an easy integration to a control network based on PLC from different brands.

Introduction to Programmable Logic Controllers (PLC)
PLCs were initially developed as replacements for relays and timers used in automated control systems. They have evolved into powerful devices capable of executing complex control operations. A typical PLC consists of a central processing unit (CPU), input and output modules, memory, and communication interfaces. These components work together to receive inputs from sensors, process the data, and generate outputs that control actuators and other equipment.

Functionality and Programming of PLC
PLCs are programmable and highly flexible, adapting to various applications in industrial settings. They can be programmed using specialized software, often based on ladder logic diagrams that represent the control logic graphically. The programming language allows users to define the desired behavior of the system, such as sequencing, timing, and logical operations. PLCs can handle multiple inputs and outputs simultaneously, making them suitable for complex control tasks.

Applications of PLC
PLCs find application across a wide range of industries, including manufacturing, automotive, food processing, and energy. In manufacturing, PLCs are used to control assembly lines, robotics, and machine tools. They enable precise coordination, fault detection, and synchronization of equipment, leading to increased productivity and reduced downtime. PLCs are also utilized in process control applications, such as temperature, pressure, and level control, ensuring efficient and safe operation. In addition, process measurements like density, viscosity, flow rate, and similar process fluid and operational parameters are fed to PLC so they can be recorded, analyzed, and decisions made based on them.

Siemens

Siemens is a global leader in automation technology, offering a wide range of PLCs. Their SIMATIC S7 series is renowned for its reliability and versatility. For more information check: Siemens global Website

Engineering tool: TIA Portal

Supported protocols: Profinet, Modbus RTU over RS-485, and Profibus.

Integration page: Siemens PLC integration with Rheonics Sensors

Figure 1. Siemens PLCs.

ABB

ABB offers programmable logic controllers known for their high performance and scalability. Their AC500 series is popular among various industries. For more information check: Programmable Logic Controllers PLCs

Engineering tool: Automation Builder

Supported protocols: Profinet and Modbus RTU over RS-485

Figure 3. ABB PLCs.

Mitsubishi Electric

Mitsubishi Electric’s MELSEC series PLCs are known for their advanced features and flexibility. They offer a range of models suitable for various automation applications. For more information check: Programmable Controllers MELSEC | Products | MITSUBISHI ELECTRIC Factory Automation

Engineering tool: GX Works3

Supported protocols: Ethernet/IP, Profinet, and Modbus TCP/RTU over RS-48

Delta

Delta offers a diverse range of PLCs, including its DVP series, which is known for its compact size and cost-effectiveness. For more information check: Welcome to Delta

Engineering tool: ISPsoft

Supported protocols:: Modbus RTU over RS-485 and Ethernet/IP.

Emerson

Emerson offers a range of PLCs for industrial automation. Their RX3i and RX7i series provide powerful control capabilities. For more information check: IC695CPE330 – RX3i CPE330 Controller | Emerson US

Engineering tool: Proficy Machine Edition.

Supported protocols: Profinet, HART, and Modbus TCP/IP.

Yokogawa

Yokogawa provides PLC solutions for process automation. Their FA-M3 controllers are known for their reliability and safety features. For more information check: FA-M3

Engineering tool: FA-M3 Programming Tool WideField3

Supported protocols: Ethernet/IP and Modbus TCP

Keyence

Keyence offers compact and user-friendly PLCs suitable for small-scale automation. Their KV series is known for its simplicity and ease of use. For more information check: PLC (Programmable Logic Controller) | KEYENCE America

Engineering tool: KV STUDIO Ver. 11.62

Supported protocols: Ethernet/IP and Modbus/TCP.

Panasonic

Panasonic offers PLCs that are compact and cost-effective. Their FP series provides reliable control for various automation needs. For more information check: Panasonic

Engineering tool: Control FPWIN Pro

Supported protocols: Ethernet/IP, Modbus TCP and RTU.

Toshiba

Toshiba provides PLC solutions for various industries, including manufacturing and infrastructure. Their T3 series offers advanced control capabilities. For more information check: Toshiba International Corporation

Engineering tool: nV-Tool

Supported protocols: Modbus TCP/IP

Wago

Wago’s PLCs are known for their modular design and flexibility. Their PFC200 series offers powerful control and communication options. For more information check: Startseite

Engineering tool: CODESYS

Supported protocols: Ethernet/IP, Profinet, and Modbus TCP/RTU.

Phoenix Contact

Phoenix Contact offers a wide range of PLC solutions for industrial automation. Their Axioline series provides flexible and reliable control options, enabling seamless integration with other devices in the automation system. For more information check: Classic control technology in accordance with IEC 61131 | Phoenix Contact

Engineering tool: PC WORX SRT – Controller – 2701680 | Phoenix Contact

Supported protocols: Profinet and Modbus TCP/IP

Eaton

Eaton offers a range of PLCs for industrial automation. The XC series provides reliable control and communication options, making it suitable for various applications. For more information: https://www.eaton.com/us/en-us/catalog/machinery-controls/xc-modular-programmable-logic-controllers–plcs-.html

Engineering tool: CODESYS

Supported protocols: Modbus TCP/RTU

LS Electric (LS Industrial Systems)

LS Electric is spin-out from South Korean conglomerate LG Electronics. Their XG5000 series PLCs offer advanced control capabilities and seamless integration with other LS products.

Engineering tool: XG5000 programming software

Supported protocols: Modbus TCP/RTU and Ethernet/IP

OPEN PLC

OpenPLC is an open-source Programmable Logic Controller that is based on an easy to use software. It is the first fully functional standardized open-source PLC, both in software and hardware. For more information: OpenPLC

Engineering tool: OpenPLC Editor

Supported protocols: Modbus TCP

Rheonics also has a few integration projects that we successfully developed in Codesys on Raspberry Pi, find below the support article where we explain how to integrate:

Rheonics communication through Profinet on Codesys

Ethernet/IP Communication through CODESYS

CODESYS Group

REFERENCES

1. The Modbus Organization
2. EtherNet/IP™ | ODVA Technologies | Industrial Automation
3. Fieldbus Integration into PROFINET IO Guideline
4. Support