Allen-Bradley 1794-OB16

You can use FLEX I/O diagnostic output modules to drive a variety of output devices. Typical output devices include the following: Relays, Solenoids, Contactors, Indicators, and Small motor starters

When you design a system using FLEX I/O diagnostic output modules, you must consider:
- The output must supply the necessary surge and continuous current for the output device being used.
- When sizing output loads, check the documentation supplied with the output device for the surge and continuous current needed to operate the device.
Capabilities of the 1794-OB16D diagnostic output module include:
- Sourcing style outputs for loads connected to common.
- 10-31.2V dc operating range.
- Provides continuous current of 0.5 A maximum (8 A per module),
2.0 mA minimum per output.
- Capable of 2 A surge for 50 ms, repeatable every 2 s.
- Protection from short circuit and overload.

Capabilities of the 1794-IB16D include:
- 61131-2 Type 3 compatible sinking inputs.
- interface with PNP sourcing sensors.
- 10-31.2V dc operating range.
- provides up to 50 mA to power an attached sensor.
- detects for an open wire condition down to 50 µA.


You can use FLEX I/O diagnostic output modules to drive a variety of output devices. Typical output devices include the following.
- Relays
- Solenoids
- Contactors
- Indicators
- Small motor starters


The FLEX I/O diagnostic modules also help detect the following types of faults:

- Open input or output field devices
- Open input or output wiring
- Shorted output field devices
- Shorted input or output wiring
- Reversed polarity of user supply wiring
- Open user supply wiring or failed user supply (using one diagnostic input channel)