An application of PLC's as an RTU in SCADA systems

摘要: Pipeline operations use a master terminal unit (MTU) to acquire information from remote units (RTUs). The ability configure PLCs as RTUs or sub-MTUs provides capabilities for interfacing existing supervisory control and data acquisition (SCADA) systems. One inherent problem has been the PLC with different MTU protocols other devices at site. of programmable C language-based communication modules eliminates both hard-wired need modify protocols. communicating between MTU, PLC-based RTUs, that various is discussed. >