Siemens SINUMERIK 840D sl Function Manual page 1067

Basic program options
FB 4 PI services
DB o1) PI services
DB 16 PI services description
FB 5 Read GUD variables
DB p Read GUD variables
FB 6 General
communication
DB 15 General
communication
Tool management
FC 6 Basic function
FC 7 Transfer function
turret
FC 8 Transfer function
FC 22 Direction selection
DB 71 Loading locations
DB 72 Spindles
DB 73 Turret
DB 74 Basic function
Compile cycles
DB 9 Interface
PLC compile cycles
1): DB number must be specified by PLC user
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 TMCP)
See above Basic program, base
Interface DBs
MCP
Basic logic functions: PLC Basic program powerline (P3 pl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.10 Memory requirements of basic PLC program for 840D
Load for PI services
One instance DB per FB 4 call
Load for PI services
Load for PI services
One instance DB per FB 5 call
Load for Read/write NC variables and PI
services
Instance DB for FB 6
Load for tool management option
Load for tool management option
Load for tool management option
Load if direction selection is required
Generated by BP as a function of NC MD
Generated by BP as a function of NC MD
Generated by BP as a function of NC MD
Generated by BP as a function of NC MD
Is generated by BP as a function of NC option
Remark
Total
Detailed description
334 214
234 each 130 each
1190 408
532 365
308 each 166 each
5986 5228
440 172
1382 1182
530 430
1002 834
404 300
30*B 30*B
48*Sp 48*Sp
44*R 44*R
(B+ (B+
Sp+R)*20 Sp+R)*20
472 436
Block size (bytes)
Load Working
memory memory
14796 11720
1290 1054
2300 1962
18386 14736
83