Technical data of CPU 31x
7.4 CPU 315-2 DP
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06
7-17
Technical data
Functionality
• MPI
Yes
• PROFIBUS DP
No
• Point-to-point connection
No
MPI
Services
• PG/OP communication
Yes
• Routing
Yes
• Global data communication
Yes
• S7 basic communication
Yes
• S7 communication
– As server
– As client
Yes
Yes
No (but via CP and loadable FBs)
• Transmission rates
187.5 kbps
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 connection 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 rate Up to 12 Mbaud
Number of DP slaves per station 124
Address area Max. 244 bytes
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