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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.
Buffer Memory Areas
Un\G10 to 17
Un\G26
Un\G27
Un\G30
Un\G61 to 68
Un\G101 to 108
Un\G109
Un\G111 to 118
Un\G119
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.
FX2N-8AD
Input mode setting
Average count
Setting change disabled
I/O characteristics adjustment
High speed conversion CH specification mode
Data addition function
Upper lower limit value detection function
Sudden change detection function
Peak value hold function
Scale over detection function
Disconnection detection
Data history
Function initialization
4 FUNCTIONS
72
4.15 FX2N Allocation Mode Function
Buffer Memory Area Name
CH1 to 8 Digital operation value
Warning output flag (Process alarm upper limit/lower limit)
Warning output flag (Rate alarm upper limit/lower limit)
Type code
CH1 to 8 Conversion value shift amount
CH1 to 8 Minimum value
Minimum value reset request
CH1 to 8 Maximum value
Maximum value reset request
Multiple input module
Input type/Range setting function
Conversion method
Offset/gain setting function
Shift function
Process alarm function
Rate alarm function
Maximum value/Minimum value hold function
Input signal error detection function
Disconnection detection function
Logging function
Offset/gain initialization function
Reference
Page 28
Page 29
It is unnecessary because the setting is reflected in the
operating condition setting request, and erroneous setting is
prevented.
Page 71
No correspondence
Page 53
Page 36
Page 38
Page 58
Page 46
Page 43
Page 59
Page 71
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