Description
MA2211-100 Safety Instrumented System (SIS)
MA2211-100 Safety Instrumented System (SIS)
Module Clips Drive controller servo motor
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Definition of IO Link Protocol and Its Interface
IO Link is a peer-to-peer, serial digital communication protocol designed for periodic data exchange between sensors/actuators and controllers (PLCs). The IO Link protocol was first proposed by Siemens and has now become an international standard IEC 61131-9. With the advancement of Industry 4.0, the use of IO Link is becoming increasingly widespread. Today”s article will introduce the definition of the IO Link protocol and its interfaces.
Factory automation can be divided into execution layer, on-site layer, on-site control layer, workshop control layer, and management layer according to functional division. As shown in the following figure:
The execution layer includes various execution mechanisms (valves, pumps, motors, etc.) and sensors, which are the muscles and peripheral nerves of factory automation. They receive commands from the upper layer and complete specified actions.
The on-MA2211-100 Safety Instrumented System (SIS) site layer includes various distributed IOMA2211-100 Safety Instrumented System (SIS) systems, which are the central nervous system of factory automation. It conveys control instructions from the upper layer to the execution layer; And feedback the signals from the execution layer to the control layer, serving as the information center;
The on-site control layer includes various PLC systems, which are the brains of factory automation. It issues corresponding instructions and commands the execution layer to complete corresponding actions based on internal program requirements and signal feedback from the execution layer;
The workshop control layer (MES) and management layer communicate with various PLC systems at the management level to complete management tasks at the workshop and factory levels.
The IO Link protocol to be introduced in this article is a protocol that transfers data between the execution layer and the field layer. An IO Link system consists of the following components:
1) IO Link Master;
2) IO Link Device;
3) Non shielded 3-5 core standard cable;
4) Tools for configuring IO Link parameters;
The IO Link Master transfers data between the IO Link device and the PLC. It is usually a distributed IO module with IO Link connection channels on the module. The IO Link Device is connected to the channel of the IO Link Master through a cable, and the IO Link Master exchanges data with the PLC through a bus. As shown in the following figure:
Every IO Link device needs to be connected to a channel of the IO Link supervisor, so IO Link is a peer-to-peer communication protocol, not a bus protocol.
IO Link devices are divided into two types: sensors and actuators: sensors are usually the four pin interface of M12, and actuators are usually the five pin interface of M12.
According to IEC 60974-5-2, the definition of IO Link Device pins follows the following regulations:
1) Pin 1 (PIN1): 24V power supply positive pole;
2) Pin 3 (PIN3): 0V
3) Pin 4 (PIN4): IO Link communication or standard IO output;
The pin definition of the IO Link device is shown in the following figure:
Which types of equipment should PLC module manufacturers develop first?
We know that PLC, also known as programmable logic controller, collects variable data through various IOs to achieve the purpose of automated control. Therefore, developing PLC is largely about developing IO. However, with so many types of IO, which PLC module manufacturers should develop first? Let me share my opinion:
1. Digital input IO, including PNP and NPN digital input IO, counter input IO, etc.
2. Digital output IO, including PNP and NPN digital output IO, PWM pulse output IO, relay output IO, and so on.
3. Analog input IO, including current acquisition input IO, voltage acquisition input IO, temperature acquisition input IO, and so on. The current input IO can collect currents ranging from 0 to 20 milliamperes, while the voltage input IO can collect voltages ranging from negative 10V to positive 10V. Temperature acquisition IO includes thermocouples and thermal resistors.
4. The style of analog output IO is similar to that of analog input IO, but does not include temperature analog, mainly voltage and current type.
Safety Instrumented System (SIS) is aMA2211-100 Safety Instrumented System (SIS) safety system used to monitor and control production processes, and is a system that prevents catastrophic accidents from occurring. SIS is usually composed of sensors, logic solvers, and actuators, which can monitor and control various industrial production processes, including petrochemical, power, metallurgy, pharmaceuticals, pulp, and paper industries. The main function of SIS is to ensure the safety and reliability of industrial processes to prevent accidents from occurring. It can determine whether there are potential hazards or accident risks by monitoring the status of equipment, process parameters, and environmental factors, and take appropriate measures in a timely manner to prevent accidents from occurring. SIS can also be integrated with other control systems such as DCS or PLC to achieve more efficient production process monitoring and management.MA2211-100 Safety Instrumented System (SIS)
Invensys is an industrial software and control systems company headquartered in the UK, established in 1987. The company provides a range of solutions, including process automation, factory automation, energy management, railway transportation, aerospace, defense, and automotive fields. Invensys has over 30000 employees worldwide and customers worldwide. In 2019, Invensys was acquired by Schneider Electric of France.
Connex is a provider of industrial automation and information solutions headquartered in the United States, established in 2000. The company mainly provides data collection, monitoring, and visualization solutions, as well as industrial network and communication solutions. Kangjisen has over 2000 employees worldwide and customers worldwide. In China, Kangjisen is fully responsible by Beijing Kangjisen Huagen Technology Co., Ltd., providing sales, technical support, engineering, training, and a series of engineering and technical services.
The MXXE series remote IO module is designed at an industrial level, suitable for industrial IoT and automation control systems. The MXXE industrial Ethernet remote I/O is equipped with two Ethernet ports for MAC layer data exchange chips, allowing data to flow down from the expandable daisy chain Ethernet remote I/O array to another local Ethernet device or up to the server.
Factory automation, security, and monitoring systems, as well as tunnel communication applications, can utilize daisy chain Ethernet to build multi-point I/O networks through standard Ethernet cables. Many industrial automation users are familiar with the most commonly used multipoint configurations in fieldbus solutions. The daisy chain function of MxxXE remote I/O not only improves the scalability and installation possibility of remote I/O applications, but also reduces the overall cost by reducing the need for individual Ethernet switches. This daisy chain equipment installation method will also reduce overall labor and wiring costs.
The difference between Ethernet remote IO module and industrial computer IO board card
The application of Ethernet remote IO module is very extensive, mainly used for distributed data collection and control, especially suitable for situations where data points are scattered and control points are scattered.
The traditional approach is to connect various instrument signals directly to the IO card through cables using an industrial computer and an IO board card. This method has high wiring costs and high signal attenuation.
The Ethernet remote IO module can directly connect the IO module to the PLC or industrial control computer, and connect the IO to the PLC or industrial control computer through an Ethernet cable. Various instrument controller signals can be directly connected to the Ethernet IO module nearby, which has several advantages:
1. It saves industrial control computers and IO boards, and Ethernet IO modules can be directly connected to the upper computer system;
2. Replacing 4-20mA signal transmission with 10/100MHz Ethernet transmission has improved transmission speed;
3. Replacing various instrument controller signal lines with an Ethernet cable reduces the attenuation of remote signal transmission;
4. The signal cable of the instrument controller only needs to be connected to the Ethernet IO module, greatly reducing cable costs and wiring workload;
5. The M160T series Ethernet remote IO module can also be directly transmitted to the Internet of Things platform through MQTT for remote monitoring.
The profinet to Modubs distributed remote IO module has now been applied in many fields, and Huajie Intelligent Control has implemented profinet remote IO modules that support Siemens 200smart, 3001200, and 1500.
Huajie Intelligent Control distributed IO supports Modubs 16D 16DO 32DI 32 DO, with flexible on-site installation, which can be installed nearby with sensors and actuators, saving wiring and PLC”s own IO points. Provides high-speed data transmission, enabling reliable communication between the controller CPU and I/O system
The advantage of using profinet distributed remote IO module in profinet is that the wiring is simple, only one network cable is needed, and each point is collected and controlled through the remote IO module. The program is controlled by Siemens 1200 or 1500, which not only reduces wiring work but also reduces wire costs
Huajie Intelligent Control has good compatibility with distributed IO and has expanded other bus based distributed IO systems, which can also help you more rationalize the management of your distributed remote devices and achieve unlimited expansion. The supporting software can assist with configuration, debugging, and diagnosis of your system. There are multiple series of models available, including HJ3204 to HJ3209, with stable performance and affordable prices, Provide maximum convenience for enterprise engineering.
1.Has been engaged in industrial control industry for a long time, with a large number of inventories.
2.Industry leading, price advantage, quality assurance
3.Diversified models and products, and all kinds of rare and discontinued products
4.15 days free replacement for quality problems
ABB — AC 800M controller, Bailey, PM866 controller, IGCT silicon controlled 5SHY 3BHB01 3BHE00 3HNA00 DSQC series
BENTLY — 3500 system/proximitor, front and rear card, sensor, probe, cable 3500/20 3500/61 3500/05-01-02-00-001 3500/40M 176449-01 3500/22M 138607-01
Emerson — modbus card, power panel, controller, power supply, base, power module, switch 1C31,5X00, CE400, A6500-UM, SE3008,1B300,1X00,
EPRO — PR6423 PR6424 PR6425 PR6426 PR9376 PR9268 Data acquisition module, probe, speed sensor, vibration sensor
FOXBORO — FCP270 FCP280 FCM10EF FBM207 P0914TD CP40B FBI10E FBM02 FBM202 FBM207B P0400HE Thermal resistance input/output module, power module, communication module, cable, controller, switch
GE —- IS200/215/220/230/420 DS200/215 IC693/695/697/698 VMICPCI VMIVME 369-HI-R-M-0-0-E 469 module, air switch, I/O module, display, CPU module, power module, converter, CPU board, Ethernet module, integrated protection device, power module, gas turbine card
HIMA — F3 AIO 8/4 01 F3231 F8627X Z7116 F8621A 984862160 F3236 F6217 F7553 DI module, processor module, AI card, pulse encoder
Honeywell — Secure digital output card, program module, analog input card, CPU module, FIM card
MOOG — D136-001-007 Servo valve, controller, module
NI — SCXI-1100 PCI – PXIE – PCIE – SBRIO – CFP-AO-210 USB-6525 Information Acquisition Card, PXI Module, Card
Westinghouse — RTD thermal resistance input module, AI/AO/DI/DO module, power module, control module, base module
Woodward — 9907-164 5466-258 8200-1300 9907-149 9907-838 EASYGEN-3500-5/P2 8440-2145 Regulator, module, controller, governor
YOKOGAWA – Servo module, control cabinet node unit
Main products:
PLC, DCS, CPU module, communication module, input/output module (AI/AO/DI/DO), power module, silicon controlled module, terminal module, PXI module, servo drive, servo motor, industrial display screen, industrial keyboard, controller, encoder, regulator, sensor, I/O board, counting board, optical fiber interface board, acquisition card, gas turbine card, FIM card and other automatic spare parts
