profinet <-> LabVIEW

[LP-tst]

Hi,

i got a request from my client to use Siemens IO module,

the only communication to them is via Profinet.

i found out about a dll, from Siemens, that allow you to connect via standard Ethernet without any further Hardware(PCI card etc.)

Have you got any experience with that kind of communication?

[chembo]

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@LP-tst wrote:

Hi,

i got a request from my client to use Siemens IO module,

the only communication to them is via Profinet.

i found out about a dll, from Siemens, that allow you to connect via standard Ethernet without any further Hardware(PCI card etc.)

Have you got any experience with that kind of communication?

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I suspect that you need also the hardware. Take a look here: SINAMICS G/S: PROFINET connection to LabVIEW. This may work just fine.

I worked on a project with similar requirement. Maybe this post can help: Can we use cRio as Profinet Master?

[comsoft]

Hi,

the DLL does not work if you need realtime communication from PROFINET Conformance class B (cycle time 1 mS).

Furthermore you cannot use the DLL with LabVIEW RT due to the underlying windows kernel mode driver for PROFINET IO.

Better use the COMSOFT board DF PROFINET IO which works with LabVIEW and LabVIEW RT and is very powerfull and easy to use http://www.comsoft.de/markets/industrial-communication-products/products/profinet-products/boards/df...

The DLL  works with a standard network interface but Siemens recommends their own board CP1614 due to performance reasons,

With the DLL a min. cycle time of >100 mS is possible, not less and the cycle time can jitter dramatically since windows does not support any realtime functionality.

[comsoft]

The DLL does not support realtime, the min. cycle time is > 100 mS which can jitter dramatically because windows does  not support any  realtime functionality

Furthermore Siemens recommends to use the CP1614 board for a save operation of the DLL. LabVIEW RT is not supported at all.

The COMSOFT DF PROFINET IO board with LabVIEW VISA driver supports cycle times of 1mS and supports LabVIEW and LabVIEW RT.

Additionally the COMSOFT board supports Controller and Device (Master/Slave) operation mode

http://www.comsoft.de/markets/industrial-communication-products/products/profinet-products/boards/df...