https://control.com/technical-articles/introduction-to-common-network-protocols-in-industrial-automation/
The well-known IT protocols include NTP, SNMP, HTTP or HTTPS, SSH, FTP, SMTP, and DHCP, and similarly, the OT protocols include Modbus RTU (serial), Modbus TCP/IP, HART, DNP3, IEC 61850, IEC 60870-5-104/101, PROFIBUS, etc.
https://control.com/forums/threads/what-makes-a-protocol-good.2284/
IP is a good network protocol for peer to peer communication TCP is a good connection orientated protocol and without the interaction of these three protocols at the t-profile I could not send this message. By contrast, modbus is a bad protocol to try to send an email, but it is a good protocol when you want to control plant.
https://control.com/latest/communication-security/industrial-protocols/
An overview of the Allen-Bradley PowerFlex variable frequency drive with Ethernet/IP protocol: features, wiring diagrams, and parameterization methods.
https://control.com/forums/threads/communication-protocols-and-standards-questions.54803/
First and foremost - you need to start making distinction between protocol and transport mediums. Modbus in any variant is a protocol, meaning it is a set of rules of what each bit in a message mean. And those messages are transmitted over a medium - Ethernet, RS232, RS422, RS485 fiber, etc.
https://control.com/technical-articles/what-is-the-bacnet-protocol/
BACnet is a network protocol used in building automation systems (BAS) to control the data exchange between different devices and components, commonly used to control HVAC and lighting, manage security and access, monitor energy usage, and allow inter-operation with other building management systems.
https://control.com/technical-articles/all-about-plcs-networking-and-communications/
Industrial Ethernet and PROFINET are variations of the original Ethernet standard. Most large companies tend to pick one of the two protocols and stick with it. Still, some PLCs allow for running a controller as a scanner or host with either protocol, sometimes even simultaneously, since the physical port is the same.
https://control.com/textbook/digital-data-acquisition-and-networks/transmission-control-protocol-tcp-and-user-datagram-protocol-udp/
Transmission Control Protocol ( TCP) and User Datagram Protocol (UDP) are two methods used to manage data flow through “ports” on a DTE device, with TCP being the more complex and robust of the two. Both TCP and UDP rely on IP addressing to specify which devices send and receive data, which is why you will often see these protocols listed in conjunction with IP (e.g.
https://control.com/forums/threads/communication-protocols-for-plc.1757/
>The Omron Host-link protocol is the serial protocol that Omron has used for over 12 years and is compatible with all Omron PLC's that support serial communication. The only differentces are the memory areas that pertain to the PLC you are trying to communicate with.
https://control.com/technical-articles/synchronous-serial-interface-ssi-protocol-for-encoders/
Alternatives to SSI in modern encoders can also include advanced protocols, such as Ethernet, DeviceNet, Profinet, and others.
https://control.com/technical-articles/understanding-the-opc-ua-protocol/
Learn about the history, framework, and current uses of the Open Platform Communications United Architecture (OPC UA) communication protocol in industrial automation.
https://control.com/technical-articles/introduction-to-industrial-network-gateways/
There are dual-protocol and multi-protocol gateway devices. The dual-protocol allows the communication between only two protocols, while multi-protocol gateways can be configured for more protocol options. Siemens PROFINET, Allen-Bradley Ethernet/IP, OPC-UA, and Omron Ethernet/IP are some of the many protocols that can be interfaced using a PLC gateway.
https://control.com/technical-articles/comparison-of-modbus-over-tcp-ip-and-profinet/
This category is also the same between the Modbus and Profinet network types. This part of the network specification includes two pieces, the Internet Protocol (IP) and the Transmission Control Protocol (TCP), which is why the networks are listed as TCP/IP.
https://control.com/education/category/communication-security/industrial-protocols/
Industrial and control automation Industrial Protocols industrial and control automation education with textbooks, videos, worksheets, and downloadable ebooks.
https://control.com/technical-articles/gateway-configuration-of-rtu560-to-communicate-power-system-data-over-iec-101-and-iec-104-protocols/
The utility program is used to configure the RTU560 collector, which acts as a gateway protocol converter that transfers power system data like the current, voltage, ampere, flow, and open/close status of circuit breakers to other control centers using IEC-101 and IEC-104 protocols.
https://control.com/technical-articles/understanding-the-industrial-network-protocol-cc-link/
In industrial automation, network protocols like Ethernet/IP, Modbus TCP, and PROFINET often dominate the conversation.
https://control.com/technical-articles/introduction-to-allen-bradley-data-highway-networks/
While both types of cable are used for data transmission, coaxial cable offers better noise protection at long distances, while twinaxial is better suited for short-range high-frequency applications. DH485 uses a cable that supports the RS485 communication protocol.
https://control.com/technical-articles/what-is-a-remote-terminal-unit-rtu/
RS-232, RS-482, and later Ethernet are some of the most widely used protocols.
https://control.com/forums/threads/can-versus-profibus-dp.13664/
While Profibus is a Master/Slave bus, mostly used for cyclic data transfer, CAN is multi Master and used for event driven communication. Because of its simplicity and the flexibility higher layer protocols like CANopen provide, it is more used in machine automation.
https://control.com/forums/threads/difference-between-modbus-and-profibus.31231/
They are two different communications protocols. If you want a rough analogy, it's like two different languages. Profibus is speaking German and Modbus is speaking English. Both languages work, but the two speakers can't communicate. Profibus has certain protocol features that let certain versions of it operate in multi-master mode on RS-485, while Modbus could be only single master.
https://control.com/technical-articles/tls-transport-layer-security-protocol-secure-modbus-TCP/
The transport layer security (TLS) provides a secure communications channel between MBAP end devices. TLS 1.3 is the most recent update to the TLS protocol and feature a faster handshake (more on that below) and updates to encryption, algorithms, and ciphers.
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