How does implicit messaging work?

[YairLevi]

Hi,
I'm looking for someone to answer some questions I have regarding implicit messaging in EIP.
I can't find any official forum or anything so I'm trying to get help here.

In implicit messaging, I never see any code example of someone defining the exact data (instance/class) that they wish to receive, all I see is specifying some pre defined assmebly object.

Can anyone explain to me how this works? where can i define what I want to receive in implicit messaging? and how do I deduce from the response the values?

[azoitl]

in CIP the data that is received or sent via implicit messaging are always an assembly object. An assembly object takes data from different objects and provides it in form of a byte array. How the data is assembled into the assembly object is either defined by certain profiles or vendor specific.

In the ODVA library there are several documents that explain the basic workings of CIP and EIP. I personally can recommend pubs 122, 123, and 138 to get you started.