MGate 4101-MB-PBS
Configuration
4-23
In addition you can select the Paging checkbox to enable the page function, so the utility will insert two I/O
word modules into the starting location of the input/output memory bank for separate page functionality.
Basically, because one I/O module supports 244 bytes only, the paging function can be used to break through
this limit. The output I/O module, which is called P1, is used to change the page number to the specified one.
The first byte of module P1 attempts to switch input page number and the second byte attempts to change
output page number. In addition, the input I/O module, which is called P2, is used to read the current page
number. The first byte of module P2 indicates input page number and the second one designates output page
number. You can’t modify these two I/O modules.
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