GE P485 Network Card User Manual


 
3–4 P485 MODBUS TO PROFIBUS CONVERTER – USER GUIDE
DATA EXCHANGE
Message frame: The message frame contains a description of what is actually
transmitted on the sub-network and consists of frame objects (see figure above).
Frame object: Frame objects are used to compose a message frame. Frame objects
include fixed values, dynamic values retrieved from a specified memory location in the
P485, or strings.