A HISTORICAL OVERVIEW OF BASIC ELECTRICAL CONCEPTS FOR FIELD MEASUREMENT TECHNICIANS Part 2 – Common Control Signals and Communications Protocols
A number of control signals have been developed and used as technology has evolved. Control signals are a standardized method of conveying information from one device to another. A control signal is the data sent from one device to another by a specific method. In industrial process instrumentation, transmitted information is data. Data can be …

