A manufacturer of bulk material-handling equipment uses Radio Frequency Identification (RFID) technology to sense the position of a large rail-mounted reclamation-conveyor operating in a hot, dusty environment. A pair of read-write modules, mounted on the machine structure, interrogates a series of RFID tags, positioned at one-meter intervals along each travel rail. The control system identifies each tag individually and determines the exact position of the machine.

Customer value

• Uninterrupted production as positional identification is highly reliable
• No risk of skewing as movement of the machine structure is synchronized
• Elimination of collision damage because of sensing distance up to 45 mm

Advantages of high frequency RFID system

• Passive transponders require no power source and minimal maintenance
• ConIdent® technology provides extended sensing range ≤ 45 mm
• Rugged transponders with nylon or all-metal housings sealed to IP67
• Read/write units interface with industry-standard PROFIBUS DP control systems

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