Memory Usage: Modicon

Revision:     4.9

These Notes apply to the TSX Nano.  This product is sold by Square D and Telemecanique also.

Download this page along with the Notes and Wiring Diagrams as a Microsoft Word file "Notes.doc" for best printing.  This file is included on the disks that come with the MSP and with all driver downloads.

Data Memory Usage.  The following block diagrams show the flow of execution and the data resources used by the different drivers. Note that single channel drivers use the memory in the driver logic. The multiplexed drivers use a separate block of storage register for each channel. The data in the storage block is moved into and out of the memory used by the driver logic.

Single Input

Single Output

Multiplexed Input

Multiplexed Output

 

Logic Memory Usage

Nano

Driver Channels Memory
  Input Output Used Available Used % For First Point For Second Point
Msp_I 1   446 6172 7%    
Msp_I_M 2   566 6172 9% 502 64
Msp_IO 1 1 966 6172 16%    
Msp_IO_M 2 2 1218 6172 20%    
Msp_O   1 514 6172 8%    
Msp_O_M   2 648 6172 10% 566 82
 


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Updated July 2003