Siemens Simatic S7-300 CPU 31xC and CPU 31x S7-300 - Manual (Page 136)

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