Technical data of CPU 31x
7.8 CPU 319-3 PN/DP
CPU 31xC and CPU 31x, Technical Data
7-48 Manual, 01/2006 Edition, A5E00105475-06
Technical data
2nd 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 No
DP master Yes
DP master 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
• Isochronous mode
Yes
• SYNC/FREEZE
Yes
• DPV1
Yes
Transmission rate Up to 12 Mbaud
Number of DP slaves 124
Address area Max. 244 bytes
DP slave (except for DP slave at both DP interfaces)
Services
• PG/OP communication
Yes
• Routing
Yes (only if interface is active)
• Global data communication
No
• S7 basic communication
No
• S7 communication
No
• Direct data exchange
Yes
• DPV1
No
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
GSD file The latest GSD file is available at:
http://www.automation.siemens.com/csi/gsd
3rd. interface
Type of interface PROFINET
Physics Ethernet
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