Siemens SINUMERIK 840Di Function Manual page 988

Detailed description
2.10 Memory requirements of basic PLC program for 810D, 840D
Basic program options
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
2-76
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
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
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
Power Line Basic PLC Program (P3)