GN-9371_2_3 User Manual
Page 8 of (110)
G-series GN-9371_2_3 PIO Rev. 1.02.docx
2.2 I/O Process Image Map
An expansion module may have 3 types of data as I/O data, configuration parameter and memory register. The
data exchange between network adapter and expansion modules is done via an I/O process image data by
internal-protocol. The following figure shows the data flow of process image between network adapter and
expansion modules.