FANUC Robotics America GFK-1535A - Manual (Page 43)

GFK-1535A Chapter 3 Operation 3-3
3
Scanning Inputs and Outputs in the I/O Station
The NIU performs a regular I/O scan of all inputs and outputs.
During each I/O scan, the NIU reads inputs from all discrete and analog input
modules and places the data into its I and AI memories.
The NIU also sends outputs from its Q and AQ memories to all discrete and analog
output modules.
NIU Memories
Discrete Input
Modules
Discrete Output
Modules
Analog Input
Modules
Analog Output
Modules
I
AI
Q
AQ
Data Handling for Modules with More than One Data Type
Some modules have multiple types of I/O data. The NIU reads all input data from
these modules and sends all their output data during every I/O scan.
NIU Memories
Module
I
AI
Q
AQ