Detailed Description   
2.1 Key PLC CPU data for 810D, 840D and 840Di 
  PLC Basic Program Solution Line (P3 sl) 
2-2  Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0 
Type of control    840Di sl  840D sl 
Inputs/outputs 
(address capacity in bytes): 
- digital + analog 
incl. reserved area 
process image 
Notice! The inputs/outputs 
above 4096 are reserved for 
integrated drives. 
 
 
 
 
 
 
4096/4096 
(8192/8192) 
256/256 
 
 
4096/4096 
(8192/8192) 
256/256 
Inputs/outputs 1) 
(addressing) 
- digital 
- analog 
Row 0 is integrated in the 
NCU. Rows 1 to 3 are 
available for I/O devices 
 
Through optional configuring 
of I/O devices: 
from I/O byte 0 onwards 
from PI/PO byte 288 
onwards 
Profibus only 
Through optional configuring 
of I/O devices: 
from I/O byte 0 onwards 
from PI/PO byte 288 
onwards 
Processing time 
 - Bit commands (I/O) 
 - Word commands 
 
0.03 ms/kA 
0.1 ms/kA 
 
0.03 ms/kA 
0.1 ms/kA 
PDIAG (Alarm S,SQ)    Yes  Yes 
PROFIBUS    Master/Slave  Master/Slave 
Number of PROFIBUS 
slaves 
  max. 125  max. 125 
Max. number of PROFIBUS 
slots 
  512  512 
DP master system no. DP    1  1 
DP master system no. 
MPI/DP 
 2 2 
DP master system no. 
internal Profibus (PCI) 
 - 3 
PBC programmable block 
communication 
  Yes  Yes 
Consistent data to standard 
slave via SFC 14, 15 
  128  128 
1) Subrack 0 is integrated in the NC. Rows 1 to 3 are available for I/O devices