Ethernet/IP module - IEEE-1588 CIP Sync

[paubine]

Hi,

I have an application where reatime position setpoint is desired (each 0.008sec). I have to talk from a CVS 1459RT (or any cRIO) to Allen Bradley Kinetix Drive. I've read some document and learn that AB use an addon to Ethernet/IP when deterministic application is require which is called CIP Sync (IEEE 1588) protocol.

Does the Ethernet/IP module support this protocol? I think AB doesn't support Ethercat...

I talked to NI and they suggest me to send the position via digital output of the FPGA by simulating an encoder. That is a good idea but is there other way to communicate deterministically? CIP Sync look to be the way ...

Thank you,

Patrick

[WenR]

Hi paubine

According to my understanding, IEEE 1588 only adds syncronization standards to Ethernet/IP. I am not sure if the Ethernet IP Module would give you predifined functions for that, however, I found this example of IEEE 1588 for cRIO.

Community: cRIO IEEE 1588 Synchronization Example

They used basic SMT VIs to build it, so I think you might be able to do the same for the AB PLC.

WenR

[paubine]

Thank you.

CIP Sync should work with AB. Allen Bradley use CIP Motion to talk between drives on a dedicated network.

My goad is to talk from a CVS 1458RT deterministically to those drive. I have a solution of simulating an encoder from the CVS 1458RT to the drives but I would like to investigate the possibility to talk ODVA CIP Motion directly from the CVS...