Getting Started Help - BeginWrite

[x3952]

So I'm just learning about Ethernet/IP and I have a noobie question.

What do I input for the startAddress parameter of the beginwrite method?
The best I've found on the web is that this might be a sequence of bytes that reflect the class, instance, and attribute.
If it helps I'm trying to communicate with a servo drive using the EthernetIPforMicro800 class. I'm writing to the standard assembly class parameter 3.

If I missed some documentation somewhere or someone can just provide an answer I would be very appreciative.
Thanks in advance.

[Archie]

The BeginRead is only for reading tags from a PLC, not generic Ethernet/IP parameters. This may help with what you want to do:

https://advancedhmi.com/documentation/index.php?title=Reading_the_CIP_Identity_of_any_Ethernet/IP_device

[x3952]

The BeginRead is only for reading tags from a PLC, not generic Ethernet/IP parameters. This may help with what you want to do:

https://advancedhmi.com/documentation/index.php?title=Reading_the_CIP_Identity_of_any_Ethernet/IP_device

Sorry, did you mean the BeginRead or beginwrite?
I actually saw this example and was able to apply it to successfully read the area of interest, but I am at a loss as to how to write to it.

[Archie]

BeginRead and BegingWrite both only apply to PLC tags. By directly accessing Ethernet/IP (CIP) you are reading/writing attributes not tags. It is a lower lever function.

The AdvancedHMI drivers have very limited low level access because they are designed to be used for reading/writing tags in a PLC.