Product Description:

The 0GH-DO480 is a digital output module manufactured by B & R Automation for the 0GH PLC Modules series. It provides sixteen transistor outputs that let a controller drive solenoids, relays, and other 24 VDC field devices directly from a compact rack position. By isolating the logic side of the PLC from the load side, the part streamlines wiring and keeps high-current switching away from sensitive CPU circuitry in industrial automation lines.

The module's transistor design supports a maximum switching voltage of 48 VDC, so connected loads must remain within that limit. Rapid actuation is possible because its channels can toggle up to 500 Hz, which is useful for fast valves or pulse-width-modulated control. When a short occurs, the outputs can momentarily withstand 90 A, while the protective architecture limits sustained current to a module total of 24 A. Each channel is rated for 2 A, and the sixteen points are divided into two galvanically separated groups of eight. Each group can source 12 A, allowing one cluster to switch heavier loads without affecting the other. Switching begins at 0 VDC, and the low internal dissipation helps reduce heat inside the enclosure during operation.

The backplane delivers a nominal control power of 24 VDC, while the output transistors drop only 0.3 V max. @ 2 A, which helps limit heat rise across the board. In the off state, leakage current is just 0.1 mA, so sensitive actuators remain reliably de-energized. For incandescent indicators or similar resistive loads, a channel can supply 15 W / 24 V without exceeding normal operating limits. The two galvanically separated output groups also allow one half of the module to be isolated for service while the other half remains in operation.