Siemens SINUMERIK 840Di Function Manual page 1261

Basic program options
Machine control panel
FC 19 Transfer of MCP signals,
M variant
FC 25 Transfer of MCP signals,
T variant
FC 24 Transfer of MCP signals,
slim variant
FC 26 Transfer of MCP signals,
HPU variant
FC 14 MPI/OPI transfer
Handheld unit
FC 13 Display control HHU
Error/operating messages
FC 10 Acquisition FM/BM
ASUB
FC9 ASUB start
Basic program options
Star/delta changeover
FC 17 Star/delta switchover of
MSD
Spindle control
FC 18 Spindle control
PLC/NC communication
FB 2 Read NC variable
DB n1) Read NC variable
FB 3 Write NC variable
DB m1) Write NC variable
FB 4 PI services
DB o1) PI services
DB 16 PI services description
FB5 Read GUD variables
DB p Read GUD variables
FB 6 General
communication
DB 15 General
communication
FB7 PI services 2
DB o PI services 2
FC 21 Transfer
m:n
PLC Basic Program Solution Line (P3 sl)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2.10 Memory requirements of basic PLC program for 810D, 840D
Must be loaded when M variant of MCP is
installed
Must be loaded when T variant of MCP is
installed
Must be loaded when slim variant of MCP is
installed
Must be loaded for HPUs
Must be loaded if MCPNum > 0
Can be loaded for handheld units
Load when FM/BM is used
Load when PLC ASUBs are used
Load for star/delta switchover
Load for spindle control from PLC
Load for Read NC variable
One instance DB per FB 2 call
Load for Write NC variable
One instance DB per FB3 call
Load for PI services
One instance DB per FB4 call
Load for PI services
Load for PI services
One instance DB per FB5 call
Load for Read/write NC variables and PI
services
Instance DB for FB 6
Load for PI services
One instance DB per FB4 call: every
Load with dual-port RAM, ...
Detailed Description
1538
1328
1522
1216
802
1032
1354
518
492
882
350
270 each
350
270 each
296
130 each
618
472
166 each
5512
280
300
144
1074
2-67