Allen-Bradley 1794-OB16D DC Digital Output Module

FAQ

Q1. What is the main function of the 1794-OB16D?
It is a FLEX I/O digital output module used to control 16 DC field devices with built-in diagnostics for monitoring output status.

Q2. How many output channels does it have?
It provides 16 independent digital output channels.

Q3. What type of outputs does it support?
It supports 24 VDC sourcing (PNP) outputs for driving loads such as relays, solenoids, and indicator lights.

Q4. What makes the OB16D different from the standard OB16?
The OB16D includes diagnostic features such as open-load and short-circuit detection, which the standard OB16 does not provide.

Q5. What diagnostics are available?
It can detect faults such as open circuits, short circuits, and output failures, with LED indicators for each channel.

Q6. What is the maximum output current?
Each channel supports up to 0.5 A, with a total module capacity of up to 8 A.

Q7. Does it provide isolation?
It provides field-to-system isolation, but not channel-to-channel isolation.

Q8. What applications is it typically used for?
It is used in industrial automation systems requiring reliable output control with fault detection, such as process control, machine automation, and safety-critical applications.

1794-OB16D Allen Bradley

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