Siemens SINUMERIK 840D sl Function Manual page 1355

Example:
Based on the memory requirements in the table above, the memory requirements have been
determined for two sample configurations (see table below).
Block Function
type no.
Minimum configuration (1 spindle, 2 axes and T MCP)
See above Basic program, base
Interface DBs
MCP
Block
type no.
Maximum configuration (2 channels, 4 spindles, 4 axes, T MCP)
See above
See above
See above
See above
See above
See above
See above
See above
See above
Basic logic functions: PLC basic program solution line (P3 sl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.10 Memory requirements of basic PLC program for SINUMERIK 840D
Remark
Total
Function Remark
Basic program, base
Interface DBs
MCP
Error/operating
messages
ASUBs 1 ASUB initiation
Concurrent axis For 2 turrets
PLC/NC 1 x read variable and 1 x write variable
communication
Tool management 2 turrets with one loading point each
Compile cycles
Total
Detailed description
Block size (bytes)
Working
memory
54688
1612
92
56392
Block size (bytes)
Working
memory
54688
2768
92
66
128
132
838
674
436
59822
81