Product Description:

The R-IB IL 24 DI 16-PAC digital input module is manufactured by Bosch Rexroth Indramat as part of the R-IB Interface Modules series. In a machine rack, it functions as a field-level collector that translates on and off sensor states into standardized process data for the local bus, allowing a controller to supervise multiple devices without point-to-point wiring. By occupying a single slot on the rail, the unit consolidates discrete signals and keeps cabinet layouts compact while maintaining clear separation between sensor power and logic power.

The module carries a protection rating of IP20, which restricts its use to enclosures but permits tool-free access to the spring terminals. All channels operate from a nominal control level of 24 V DC, and this common supply avoids level shifting when mixing proximity switches, mechanical contacts, and opto-isolated sources. There are 16 independent input points, so an individual slice can serve an entire station of limit switches or indicator lamps without expansion. Sampled data moves onto the remote backplane at 500 kBit/s, matching the speed of other R-IB slices and preventing latency when several modules share the segment. Each scan transfers a block that is exactly 16 bits wide, making byte alignment straightforward for PLC tags and reducing the need for bitwise masking in user code.

The circuitry draws only 3 mA per active channel, so overall thermal stress remains low; housing losses are limited to 2.8 W, which the plastic case dissipates by natural convection. Feed-through conductors can carry up to 4 A, allowing the same terminal strip to energize connected sensors without separate distribution bars. Cable lengths to field devices may extend to 30 m before signal integrity must be reviewed, giving installers flexibility in routing. Mechanical space is minimized with a width of 48.8 mm, enabling dense stacking of I/O while still leaving finger clearance for service.