Product Description:

The R-IB IL 24 DO 4-PAC is a digital output module manufactured by Bosch Rexroth Indramat for the R-IB Interface Modules series. It functions as an interface that links a higher-level controller to field-mounted devices, translating low-level logic signals into switched 24 V lines for actuators. The module is intended for DIN-rail installation inside control cabinets where compact channel density is needed to drive coils, lamps, and other resistive or inductive loads.

This unit presents 4 individually switched outputs that share a common segment supply of 24 V DC. Each channel is rated for an on-state nominal voltage of 24 V DC, and the combined load must not exceed a total of 2 A. Output data are transferred to the module over the local bus at a 500 kbps transmission speed, while the controller exchanges a fixed process data width of 4 bits that directly maps to the four output states. Protection against contact ingress is provided by the IP20 housing rating, which is suited to enclosed cabinet environments. The design supports fast signal edges, and ohmic loads up to 12 W and inductive loads up to 12 VA can be connected without derating when the specified impedance values are observed. This arrangement suits cabinet-based I/O stations that need straightforward switching of pilot lights, relays, and small solenoids.

The module supports a maximum switching frequency of 300 Hz for purely resistive circuits, and each channel has a nominal current of 0.5 A. The electronics draw 44 mA from the communications backplane and rely on a logic rail of 7.5 V DC for state processing, keeping the housing power dissipation to 0.6 W. Safety cut-off engages when channel current exceeds 0.7 A, while leakage remains below 300 µA in the off state to help prevent unintended actuation of sensitive loads. Low internal power demand also helps limit heat buildup when several modules are mounted side by side in a dense I/O rack.