Detailed description
2.1 Key PLC CPU data for 810D, 840D and 840Di
Power Line Basic PLC Program (P3)
2-2 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
810D / 840D 810D / 840D 810D / 840D
Inputs/outputs 1)
(addressing)
- digital
- analog
Subrack 0 is not available for
I/O devices:
from I/O byte 32 onwards
from PI/PO byte 384
onwards
Through optional configuring
of I/O devices:
from I/O byte 0 onwards
from PI/PO byte 272
onwards
Through optional configuring
of I/O devices:
from I/O byte 0 onwards
from PI/PO byte 272
onwards
Processing time
- Bit commands (I/O)
- Word commands
0.3 ms/kA
1-4 ms/kA
0.3 ms/kA
1-4 ms/kA
0.3 ms/kA
1-4 ms/kA
PDIAG (Alarm S,SQ) no no yes
PROFIBUS N/A Master Master/Slave
Number of PROFIBUS
slaves
Min. 16, max. 64
SDB 2000 ≤ 8 KB
Min. 16, max. 64
SDB 2000 ≤ 32 KB
PBC (programmable block
communication)
no no yes
Consistent data to standard
slave via SFC 14, 15
N/A 26 26
1) Subrack 0 is integrated in the NC. Subracks 1 to 3 are available for I/O devices.
I/O expansion
810D / 840D 810D / 840D 810D / 840D
PLC CPU
MLFB
Integrated PLC
CPU314
Integrated PLC
CPU315-2DP
6ES7 315-2AF00-0AB0
Integrated PLC
CPU315-2DP master/slave
6ES7 315-2AF01-0AB0
I/O modules 24 24 24
PROFIBUS DP modules N/A yes yes
Interfaces (MPI) 1 1 1
Types of control: 840Di, 810D and 840D
Key CPU data
840Di 810D 840D
PLC CPU
MLFB
Integrated PLC 315-2DP
master/slave
6ES7 315-2AF03-0AB0
Integrated PLC 315-2DP
master/slave
6ES7 315-2AF03-0AB0
Integrated PLC 314C-2DP
master/slave
6FC5 314-6CF00-0AB0
Memory for user
and basic program
64, 96, 128, 160, 192, 224,
256 KB
64, 96, 128, 160, 192, 224,
288 KB
96, 160, 224, 352, 416, 480
KB
(dependent on option)
Data block memory Like user memory Like user memory Up to 96 KB
Memory submodule no no no
Bit memories 4096 4096 4096
Timers 128 128 256
Counters 64 64 256
Clock memories 8 8 8