Siemens Simatic S7-300 CPU 31xC and CPU 31x S7-300 - Manual (Page 189)

Technical data of CPU 31x
7.5 CPU 315-2 PN/DP
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
7-23
Technical data
Routing
•
Interface X1 configured as
–
MPI
– DP master
– DP slave (active)
• Interface X2 configured as PROFINET
Yes
Max. 10
Max. 24
Max. 14
Max. 24
CBA (at 50 % communication load)
•
Maximum data length for arrays and
structures between two partners
–
Acyclic PROFINET interconnections
– Cyclic PROFINET interconnections
– Local interconnections
1400 bytes
450 bytes
Slave-dependent
• Number of coupled PROFIBUS devices 16
• Total of all master/slave connections 1000
• Number of device-internal and PROFIBUS
interconnections
500
• Number of remote interconnecting partners 32
Remote interconnections with acyclical transmission
Scan rate: Minimum scan interval
500 ms
Number of incoming interconnections 100
Number of outgoing interconnections 100
Remote interconnections with cyclical transmission
Scan rate: Minimum scan interval
10 ms
Number of incoming interconnections 200
Number of outgoing interconnections 200
HMI interconnections via PROFINET (acyclic)
HMI interconnections
500 ms
Number of HMI variables 200
Sum of all interconnections 4000 bytes input/4000 bytes output
Interfaces
1st interface
Type of interface Integrated RS485 interface
Physics RS 485
electrically isolated Yes
Interface power supply
(15 to 30 VDC)
max. 200 mA
Functionality
• MPI Yes
• PROFIBUS DP Yes
• Point-to-point communication No
• PROFINET No