Siemens 505-2571 User Manual download pdf (Page 14)

2/14 Siemens ST40

SIMATIC 575 CPU Memory

NOTE: The CPU has 23,552 control relays (CRS).

The following are retentive:

769-1024

1793-2048

2817-3072

3841-4096

4865-5120

5889-6144

6913-7168

7937-10240

CPU Memory Size

Total Required

Block Required Minimum Maximum Size for Maximum

Memory Type Allocation Size per Block Size -2104 / 2105 -2104 / 2105

Ladder (L) 1K byxtes 3K bytes 1K bytes 273K bytes 819K bytes

Variable (V) 1K bytes 1K bytes 1K bytes 187K bytes 817K bytes

Constant (K) 1K bytes 1K bytes 0K bytes 816K bytes 816K bytes

Special (S) 1K bytes 1K bytes 0K bytes 1840K bytes 1840K bytes

Compiled Special (CS) 1K bytes 1K bytes 0K bytes 816K bytes 816K bytes

User (U) 1K bytes 1K bytes 0K bytes 816K bytes 816K bytes

TMR/CTR 1024 per block 5K bytes 1024 20,480 100K bytes

DRUMs 64 per block 3K bytes 64 2304 108K bytes

Shift registers 1024 per block 1K bytes 1024 16,384 16K bytes

Table moves 1024 per block 2K bytes 1024 14,336 28K bytes

One shots 1024 per block 1K bytes 1024 32,768 32K bytes

575-2106 Total Memory 1856 KBytes

Block Required Minimum Total Required

Memory Type Allocation Size per Block Size Maximum Size for Maximum

Ladder (L) 1K byxtes 3K bytes 1K bytes 1856K bytes –

Variable (V) 1K bytes 1K bytes 1K bytes 614K bytes 1842K bytes

Constant (K) 1K bytes 1K bytes 0K bytes 1841K bytes 1841K bytes

Special (S) 1K bytes 1K bytes 0K bytes 1840K bytes 1840K bytes

Compiled Special (SF) 1K bytes 1K bytes 0K bytes 1840K bytes 1840K bytes

User (U) 1K bytes 1K bytes 0K bytes 1840K bytes 1840K bytes

TMR/CTR 1024 per block 5K bytes 1024 20,480 100K bytes

DRUMs 64 per block 3K bytes 64 2304 108K bytes

Shift registers 1024 per block 1K bytes 1024 16,384 16K bytes

Table moves 1024 per block 2K bytes 1024 14,336 28K bytes

One shots 1024 per block 1K bytes 1024 32,768 32K bytes

575-2104/2105 Total Memory 832 KBytes

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