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I am using stepper drive that "supports Explicit Messaging using either a Class 3 connection or the Unconnected Message Manager (UCMM)". I had success to communicate with this drive using UDP, but can't figure out how to send and receive messages over Ethernet/IP using class 3 connection.
I found IIoDrvEIPAcyclicServicesLibrary in Library Manager that has IoDrvOpenClass3Connection and IoDrvSendClass3ConnectedMessage methods, but it is part of interface and I don't know how I can implement it and use it.
Do you have any suggestions?
Thank you!
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Thank you for respond. I know about this example and I used it to get access to AssemblyObject class to read IO status of my drive. May be I am missing a point, but it looks for me that example is for common services (like setAttribute, getAttribute, Start, Stop, etc). In my case I have vendor specific profile with service code 0x3C and the class code is 0x64. I can enter class code in the function block even if it is not standard, but I don't understand how to use service code.
IIoDrvEIPAcyclicServicesLibrary with IoDrvOpenClass3Connection and IoDrvSendClass3ConnectedMessage methods is exactly what I needed (it has structure with service code, class code, Instance and Attribute), but yesterday I found out that that library is for Hilscher card only.
Thank you!
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hello,
I am using stepper drive that "supports Explicit Messaging using either a Class 3 connection or the Unconnected Message Manager (UCMM)". I had success to communicate with this drive using UDP, but can't figure out how to send and receive messages over Ethernet/IP using class 3 connection.
I found IIoDrvEIPAcyclicServicesLibrary in Library Manager that has IoDrvOpenClass3Connection and IoDrvSendClass3ConnectedMessage methods, but it is part of interface and I don't know how I can implement it and use it.
Do you have any suggestions?
Thank you!
Hi,
there is an example application in our CODEYSYS store for this:
http://store.codesys.com/ethernet-ip-se ... ample.html
BR
Edwin
Edwin,
Thank you for respond. I know about this example and I used it to get access to AssemblyObject class to read IO status of my drive. May be I am missing a point, but it looks for me that example is for common services (like setAttribute, getAttribute, Start, Stop, etc). In my case I have vendor specific profile with service code 0x3C and the class code is 0x64. I can enter class code in the function block even if it is not standard, but I don't understand how to use service code.
IIoDrvEIPAcyclicServicesLibrary with IoDrvOpenClass3Connection and IoDrvSendClass3ConnectedMessage methods is exactly what I needed (it has structure with service code, class code, Instance and Attribute), but yesterday I found out that that library is for Hilscher card only.
Thank you!