Safety and security of a runway
For a runway edge intrusion detection and alarm system, the combination of relay control for lighting and motion detection is at the heart of the application. On a typical day, aircraft constantly come and go on both the runway and adjacent taxiways, creating a dangerous environment for anyone or anything entering a runway. For this reason, installing a stand-alone, remote control system for intrusion detection and issuing alarms is an absolute necessity to avoid accidents.

System description and requirements
Besides motion sensors, alarm lights, and a second-tier (external) relay board, a remote controller is the most important component inside the device cabinet. Programming power on the controller should be available to perform the local control. At the same time, the relay components on a second-tier relay board should be replaced in advance to avoid failures when they wear out. On average, the relays can be used 25,000 times, but should be replaced after being used 10,000 times to avoid unexpected failures. The local controller not only controls the on/off of alarm lights when the sensors are activated, but are also required to send a warning when the usage of a specific channel of second-tier relay board reaches 10,000 times.

Moxa's solution
The ioLogik E2214 is designed with 6 DI and 6 relay channels. With the world's easiest programming local control logic, called Click&Go, users can easily program the ioLogik E2214 as the front-end first relay controller to detect the intrusion. Click&Go also supports a special function, called "relay counter storage," to provide readings of the current relay usage. This allows the ioLogik E2214 to send out TCP packets to the central SCADA system and a warning e-mail at the same time so that site maintainers can replace the relay components of the second-tier relay board. After the replacement, simply press a RESET button attached to the ioLogik E2214 to clear the count. In other words, there is no need to use laptop computers or remote commands.

Network System Diagram

Products
ioLogik E2214: Active Ethernet I/O with 6 digital inputs and 6 relay outputs

Benefits

• Easy IF-THEN style control logic with Click&Go replaces a PLC or RTU
• Active reports with TCP/UDP/SNMP trap and e-mail
• Relay count report
• Compact size and cost-effective

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