Product Description:

The KL1498 digital input terminal is manufactured by Beckhoff and belongs to the KL Analog Input Modules series. This I/O slice plugs into a common backplane and forwards machine-level switch states to the PLC, serving as a compact sensor interface for 24 V industrial control loops. By converting eight separate field signals into a serial process image, the terminal streamlines cabinet wiring and supports decentralized architectures often required in conveyor sections, packaging machines, or building services. That makes it useful in distributed I/O stations where many simple status signals must be collected close to the machine.

The terminal is supplied from a system bus with a nominal voltage of 24 V DC, and the same potential is used as the input reference so wiring remains uniform across the station. Each channel uses a typical 0.2 ms input filter, which suppresses contact bounce while still allowing rapid edge detection for fast sensors. Channel density is high because the unit provides 8 discrete inputs mapped directly to a process image width of 8 input bits, so the controller can address every point with a single byte. For cabinet installations, the housing carries a protection rating of IP20, which provides finger-safe touch protection while the surrounding enclosure handles broader exposure conditions.

Internal copper conductors route up to 10 A through the power contacts, allowing adjacent terminals to draw actuating current without extra distribution blocks. The housing measures 12 × 100 × 68 mm, fits on a 35 mm DIN rail, and can be positioned variably to suit vertical or horizontal layouts. One-wire connection technology reduces each input to a single lead plus the common supply, and the module uses ground switching for sensor interfacing. A polycarbonate body keeps weight low while maintaining electrical insulation, and the flexible mounting orientation helps when panel space is restricted.