Siemens Simatic S7-300 CPU 31xC and CPU 31x S7-300 - Manual (Page 197)

Technical data of CPU 31x
7.6 CPU 317-2 DP
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
7-31
Technical data
Transmission speed
Up to 12 Mbps
Number of DP slaves 124
Address range per DP slave max. 244 bytes
DP slave
(except for DP slave at both interfaces)
Services
• Routing Yes (only if interface is active)
• Global data communication No
• S7 basic communication No
• S7 communication No
• Direct data exchange Yes
• Transmission rates Up to 12 Mbps
• Automatic baud rate search Yes (only if interface is passive)
• Intermediate memory 244 bytes I / 244 bytes O
• Address areas max. 32 with max. 32 bytes each
• DPV1 No
2nd interface
Type of interface
Integrated RS485 interface
Physics RS 485
electrically isolated Yes
Type of interface Integrated RS485 interface
Interface power supply (15 to 30 VDC) max. 200 mA
Functionality
MPI
No
PROFIBUS DP Yes
Point-to-point communication No
DP master
Services
• PG/OP communication Yes
• Routing Yes
• Global data communication No
• S7 basic communication No
• S7 communication No
• Constant bus cycle time Yes
• SYNC/FREEZE Yes
• DPV1 Yes
Transmission speed Up to 12 Mbps
Number of DP slaves 124
Address area max. 244 bytes