Siemens Simatic S7-300 CPU 31xC and CPU 31x S7-300 User 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:
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