More than 1024 byte to transfer

[Webinar_Question]

In case of having more than 1024 byte to transfer is there any possiblity to fragment image in real time processing?

[Alex.W]

In case of having more than 1024 byte to transfer is there any possiblity to fragment image in real time processing?

PROFINET distinguishes two diffent mehtods to exchange data:

• 1. Cyclical data exchange: This is the fast and deterministic data exchange between a PROFINET Controller and a PROFINET Device. Data is exchanded via Ethernet frames and have a limitation of up to 1,440 bytes per frame (= Application Releation (AR) between Controller and Device)

• 2. Acyclic data exchange: Also known as record service, every PROFINET devkit supports this service. In addition to cyclic data exchange, data records can also be offered at each subslot. Each data record can have a length of up to 64kB, although it should be noted that not all controllers or devkits also offer the 64kB. Common are 8..32kB. However, several data sets can be offered. The data exchange is initiated by the user, i.e. a job is created in the PLC user programme, for example, which is to read or write a specific data record. Of course, you can also use this service from your own
  tool to parameterise your own device.