Technical data of CPU 31xC
6.5 CPU 314C-2 PtP and CPU 314C-2 DP
CPU 31xC and CPU 31x, Technical data
6-26 Manual, Edition 08/2004, A5E00105475-05
Technical data
CPU 314C-2 PtP CPU 314C-2 DP
DP slave
Number of connections – 12
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
• Transmission rates
– Up to 12 Mbps
• Intermediate memory
– 244 bytes I / 244 bytes O
• Automatic baud rate search
– Yes (only if interface is passive)
• Address areas
Max. 32, with max. 32 bytes each
• DPV1
– No
GSD file – The latest GSD file is available at:
http://www.ad.siemens.de/support
in the Product Support area
Point-to-point communication
• Transmission rates
38.4 kbps half duplex
19.2 kbps full duplex
–
• Cable length
Max. 1200 m –
• User program can control the
interface
Yes –
• The interface can trigger a break or
an interrupt in the user program
Yes (message with break ID) –
• Protocol driver
3964 (R); ASCII and RK512 –
Programming CPU 314C-2 PtP CPU 314C-2 DP
Programming language LAD/FBD/STL
Available instructions see the Instruction List
Nesting levels 8
System functions (SFCs) see the Instruction List
System function blocks (SFBs) see the Instruction List
User program security Yes
Integrated I/O CPU 314C-2 PtP CPU 314C-2 DP
• Default addresses of the integrated
– Digital inputs
– Digital outputs
– Analog inputs
– Analog outputs
124.0 to 126.7
124.0 to 125.7
752 to 761
752 to 755
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