Mitsubishi MELSEC iQ-F, User Manual

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4 FUNCTIONS
4.15 FX2N Allocation Mode Function
4.15
FX2N Allocation Mode Function
It is a function to operate the buffer memory areas of the multiple input module with the same layout as the buffer memory
address equivalent to FX2N-8AD.
This compatibility enables the reuse of programs that have proven performance on FX2N-8AD.
Operation
In FX2N allocation mode, only allocation of buffer memory area is changed. The following buffer memory area is allocated the
same as FX2N-8AD.
For buffer memories with different allocations from FX2N-8AD, it can be used by changing the program. For buffer memory in
FX2N allocation mode, refer to the following.

Page 115 In FX2N allocation function mode
When reusing the program used by FX2N-8AD, delete the initial setting process and set the module
parameters with GX Works3.
When performing the same operation as FX2N-8AD, it can be executed by the following function.
Buffer Memory Areas Buffer Memory Area Name
Un\G10 to 17 CH1 to 8 Digital operation value
Un\G26 Warning output flag (Process alarm upper limit/lower limit)
Un\G27 Warning output flag (Rate alarm upper limit/lower limit)
Un\G30 Type code
Un\G61 to 68 CH1 to 8 Conversion value shift amount
Un\G101 to 108 CH1 to 8 Minimum value
Un\G109 Minimum value reset request
Un\G111 to 118 CH1 to 8 Maximum value
Un\G119 Maximum value reset request
FX2N-8AD Multiple input module Reference
Input mode setting Input type/Range setting function Page 28
Average count Conversion method Page 29
Setting change disabled

It is unnecessary because the setting is reflected in the
operating condition setting request, and erroneous setting is
prevented.
I/O characteristics adjustment Offset/gain setting function Page 71
High speed conversion CH specification mode

No correspondence
Data addition function Shift function Page 53
Upper lower limit value detection function Process alarm function Page 36
Sudden change detection function Rate alarm function Page 38
Peak value hold function Maximum value/Minimum value hold function Page 58
Scale over detection function Input signal error detection function Page 46
Disconnection detection Disconnection detection function Page 43
Data history Logging function Page 59
Function initialization Offset/gain initialization function Page 71