Memory Usage: PLC Direct (Koyo)

Revision: 4.10

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.

Note: The DATA is an 8-digit BCD value. It is a double word occupying two consecutive memory locations.

Single Input

Single Output

Multiplexed Input

Multiplexed Output

 

Logic Memory Usage

DL105

Driver Channels Memory
  Input Output Used Available DL105 Used % DL105     For First Point For Second Point
Msp_I 1   143 2048          

 

DL205

Driver Channels Memory
  Input Output Used Available DL240 Used % DL240 Available DL250 Used % DL250 For First Point For Second Point
Msp_I 1   143 2560 6% 7680 2%    
Msp_I_M 2     2560 % 7680 %    
Msp_IO 1 1 283 2560 11% 7680 4%    
Msp_IO_M 2 2   2560 % 7680 %    
Msp_O   1 151 2560 6% 7680 2%    
Msp_O_M   2   2560 % 7680 %    
 


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Updated July 2003