Detailed description
2.10 Memory requirements of basic PLC program for SINUMERIK 840D
Basic logic functions: PLC basic program solution line (P3 sl)
80 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Basic program options
DBp Read GUD variables One instance DB per FB5 call: 166
DB15 General communication Global data block for communication 146
FB7 PI services 2 Load for PI services 76
DBo PI services 2 One instance DB per FB4 call: every 144
FC21 Transfer Load with dual-port RAM, ... 164
m:n
FB9 Switchover M to N Load with M to N 58
Safety Integrated
FB10 Safety relay Load with Safety option 74
FB11 Brake test Load with Safety option 76
DB18 Safety data DB for Safety 226
Tool management
FC7 Transfer function
turret
Load for tool management option 84
FC8 Transfer function Load for tool management option 132
FC22 Direction selection Load if direction selection is required 138
DB71 Loading locations Generated by BP as a function of NC MD 40+30*B
DB72 Spindles Generated by BP as a function of NC MD 40+48*Sp
DB73 Revolver Generated by BP as a function of NC MD 40+44*R
DB74 Basic function Generated by BP as a function of NC MD 100+(B+
Sp+R)*22
Compile cycles
DB 9 Interface
PLC compile cycles
Is generated by BP as a function of NC option 436
1): DB number must be specified by PLC user
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