Owner manual

Table Of Contents

Publication 1794-UM066A-EN-P - February 2012

36 Rack Optimized Discrete I/O

1. Remove power from the FLEX I/O and wire inputs 0 and 2 of the

1794-IB16 FLEX I/O input module as shown in the following figure:

2. Restore power to the FLEX I/O.

3. Restore the RSLogix 5000 software window and place the controller in

Run mode.

4. Repeatedly press and release the momentary switch at Input 0 (Count) on

the 1794-IB16 input module.

Each time you press the switch the Parts_Count accumulated value

increments on the screen and the LEDs of the 1794-OB16 output module

increment in binary.

5. Press and release the momentary switch at Input 2 (Reset) on the

1794-IB16 input module.

The accumulated value of the Parts_Count reset to zero and all of the

LEDs on the 1794-OB16 output module turn off.

This completes the Rack Optimized Discrete I/O example.

Chapter Summary

This chapter described how to set up and use rack optimized discrete I/O. The

next chapter describes how to add analog I/O modules to a configuration using

direct connection.

TIP

For more information on wiring and interpreting status LED

indicators on the I/O modules, refer to the I/O module publications

1794-IN093

and 1794-IN094.

Count

Reset

24V

1794-IB16

16 (COM)

151413121110987654321

24 VDC SOURCE OUTPUT

1794±OB16

Allen-Bradley

LEDs on Output Module will increment in binary.

Accumulated Value will

increment and move to

Output Module.