What is the Difference between Profibus and Profinet?

profibus and pro finet our industrial communications protocols used extensively by Siemens control systems while they may sound similar don't let the name fool you PROFIBUS and pro finet are very different protocols that use different cables and connectors let's take a look at these protocols and learn how they differ from one another [Music] before we get into today's video if you love our videos be sure to click the like button below and make sure to click Subscribe and the bell to receive notifications of new real Parrs videos this way you never miss another one released in 1993 PROFIBUS or process filled bus is a tried-and-true industrial communication protocol with over 50 million devices installed by the end of 2017 it is a well-established technology used in many different control applications a PROFIBUS connection port may look very familiar to you it looks just like a standard db9 serial connector while it may look the same the underlying protocol is very different most PROFIBUS cable looks like this it is easily recognizable by its purple outer jacket some profibus connectors have a pass-through port on the back of the connector so that you can daisy chain another device to the bus note that both kinds of connectors have a red switch on the back this switch controls the terminating resistor the terminating resistor indicates the end of the PROFIBUS network this switch must be set to the on position on the last device and off for every other device if these switches are set incorrectly a bus fault will occur each device on a a bus network must have a unique address ranging from 1 to 127 this means that up to 127 devices may reside on a single PROFIBUS network for some devices the address will be set using step 7 or TI a portal for others the address must be configured using dip switches located on the front of the device profibus networks operate at speeds of 9,600 bits per second to 12 megabits per second while PROFIBUS cables may be up to 1,000 meters long shorter cable lengths are required for higher data rates profe Annette is a newer ethernet-based industrial communications protocol the physical interface used for pro finet is a standard rj45 Ethernet jack profe Annette cables are easily recognizable by their green color while in some cases a standard Ethernet cable may be used to connect to Pro finet devices official profile net cables should be used as they contain robust shielding enter designed to function well in harsh industrial environments Pro finet operates at 100 megabits per second and cables maybe up to 100 meters in length due to its high-speed operation and a response time of less than one millisecond pro finet is ideal for high-speed applications because pro finet uses the same physical connection standards as Ethernet standard Ethernet switches can be used to expand your network Pro finet devices have three different types of addresses an IP address a MAC address and a device name all a thern ette devices use IP addresses and MAC addresses but the device name is unique to Pro finet devices as an automation engineer you will be primarily concerned with device names and IP addresses as you configure your Pro finet networks due to its higher speed and greater flexibility Pro finet is becoming the preferred communications protocol for industrial application both protocols are widely used today and being familiar with both of them will be essential to your job as it controls engineer want to learn PLC programming in an easy-to-understand format and take your career to the next level head on over to real parse com [Music]

Channel: RealPars

Views: 536,867

Keywords: Industrial Communications Protocols, Profibus, Profinet, Profibus connection, Profibus connector, standard DB-9 serial connector, Profibus Terminating Resistor, ProfiBus network, Profinet cables, Profibus cables, Profinet devices, IP address, MAC address, Profinet different types of addresses, Profinet high speed operation, Industrial Networks

Id: YxF9QgRAx8A

Length: 5min 28sec (328 seconds)

Published: Mon Nov 19 2018