Rockwell Automation 1794-IJ2XT FLEX I/O Frequency Input Modules User Manual - Manual (Page 22)

Publication 1794-6.5.11 - September 2011
12 Overview of the Frequency Input Module
Direction Detection – Principle of Operation
Chapter Summary In this chapter, you learned about the frequency input module, block transfer
communication, and details of how the module functions.
Sensor 0
Sensor 1
Clockwise rotation
Frequency input
IJ2 module
Gate input
M
2 x M
Sensor 0 (F)
Sensor 1 (G)
Clockwise
Rotation
Counter
Clockwise
Rotation
Sensor 0 (F)
Sensor 1 (G)
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