Siemens SIMATIC S7-400H - Page 282

Technical Specifications
13-4
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
Communication Functions
Programming device/OP
communication
Yes
Number of connectable
OPs
8 with message processing
31 without message
processing
Number of connection
resources for S7
connections via all
interfaces and CPs
32, with one each of those
reserved for PG and OP
S7 communication
S7 basic communication
Global data communication
Yes
no
no
• User data per job Max. 64 Kbytes
– Of which consistent 32 bytes
S5-compatible
communication
yes (via CP –max. 10
simultaneously– and FC
AG_SEND and FC
AG_RECV)
• User data per job Max. 8 Kbytes
– Of which consistent 240 bytes
Standard communication
(FMS)
yes (via CP and loadable
FB)
Interfaces
1st Interface
Type of interface Integrated
Physical RS 485/Profibus
Isolated Yes
Power supply to interface
(15 VDC to 30 VDC)
Max. 150 mA
Number of connection
resources
MPI: 32
DP: 16
Functionality
• MPI Yes
• PROFIBUS DP DP Master
1st Interface in MPI mode
• Utilities
– Programming
device/OP
communication
Yes
– Routing Yes
– Global data
communication
No
– S7 basic
communication
No
– S7 communication Yes
• Transmission rates Up to 12 Mbps
1st Interface in DP mode
• Utilities
– Programming
device/OP
communication
Yes
– Routing
– Global data
communication
– S7 basic
communication
– S7 communication
Yes
no
no
yes
– Equidistance No
– SYNC/FREEZE No
– Enable/disable DP
slaves
No
• Transmission rates Up to 12 Mbps
• Number of DP slaves Max. 32
• Address area Max. 2 Kbytes inputs/
2 Kbytes outputs
• User data per DP slave Maximum of 244 bytes E,
maximum of 244 bytes A,
divided into 244 Slots with
128 bytes each
2nd Interface
Type of interface Integrated
Physical RS 485/Profibus
Isolated Yes
Power supply to interface
(15 VDC to 30 VDC)
Max. 150 mA
Number of connection
resources
16