Design and Troubleshooting Wireless Ethernet/Serial Irrigation Systems

摘要

The purpose of this article is to provide some insight into design considerations for wireless communication networks as used in modern SCADA systems. With some basic knowledge of design considerations, it is easier to take the right automation approach and choose the right equipment for the task at hand. Wide area SCADA systems provide a means of remotely monitoring events and controlling machinery at unattended locations. To accomplish this task, as in any system design, various disparate components must be integrated. In this case they include: sensors and metering devices, motor controls, programmable logic controllers, a communications network to link it all together, a host computer and HMI software. Sometimes, remote site hardware and wireless communications gear is packaged together in a NEMA outdoor rated equipment enclosure. In this instance, the equipment may be referred to as an RTU or a Remote Terminal Unit.