Sorry if this is a beginner question, and I have looked at the manuals. Seems like a couple of tech notes would answer my question but I don't have access.
I think symbolic is to actually read or write variables while generic is for reading controller parameters, but not sure?
I've seen reference to symbolic being used for HMI to PLC, assuming this is because the HMI typically displays variables.
Question is what is the difference between the two types of MSG instructions (this is in a micro800).
Second question, if I am trying to message a couple of bits or bytes between two micro820 controllers, which would I use. the couple of bits are just used to handshake between two stations (station 1 ready to station 2, ...)
Third question, If I am trying to read data from a micro800 using a CompactLogix, which type of instruction do I use.
I think symbolic is to actually read or write variables while generic is for reading controller parameters, but not sure?
I've seen reference to symbolic being used for HMI to PLC, assuming this is because the HMI typically displays variables.
Question is what is the difference between the two types of MSG instructions (this is in a micro800).
Second question, if I am trying to message a couple of bits or bytes between two micro820 controllers, which would I use. the couple of bits are just used to handshake between two stations (station 1 ready to station 2, ...)
Third question, If I am trying to read data from a micro800 using a CompactLogix, which type of instruction do I use.