PROFINET

Realtime Performance for Realtime-Communication!

 

 

 

PROFINET is a very fast Ethernet based Fieldbus with bus topology.

 

QNX 6.x support is offered for the Siemens PROFINET boards CP1604, CP1616, and the onboard CP1616 interface of the MicroBox II.

The C-API as well as the function block library for the advanced multi core real-time Soft-PLC DACHSview are fully compatible with the PNIO API defined by Siemens!

The operation modes RT and IRT are supported for QNX 6.3.2 up to QNX 6.5.0 with a cycle time of 250 µs.

The configuration of the CP16xx Masters and its networks can be done by the SIMATIC NCM PC configuration tool.

 

Complete PCs (PACs) with pre-installed CP16xx and software can be delivered on request.

 Please, contact us for further information

 

DACHSview based applications and visualizations are also supporting DACHS PROFINET.
DACHSview-SDL info         

 

 

 

Optimizing bus performance of Ethernet based fieldbusses

Frame transmission time vs. frame size

 

The frame size defines the maximal frequency of the bus cycle. This is the case for Ethernet based fieldbusses like e.g. EtherCAT, PROFINET, POWERLINK a.s.o.    This fact must be noticed for the design of the size of the slave I/O images and poll sequences. Huge I/O images of the fieldbus slaves lead to low bus update cycles.