Siemens CPU 31 Series Technical Data Manual page 129

Technical data
Block status
Single-step
Breakpoints
Diagnostic buffer
Number of entries (not configurable)
•
Communication functions
PG/OP communication
Global data communication
Number of GD circuits
•
Number of GD packets
•
Sender
–
Receiver
–
Size of GD packets
•
Consistent data
–
S7 basic communication
User data per job
•
Consistent data
–
S7 communication
As server
•
As client
•
User data per job
•
Consistent data
–
S5compatible communication
Number of connections
Can be used for
PG communication
•
Reserved (default)
–
Configurable
–
OP communication
•
Reserved (default)
–
Configurable
–
S7-based communication
•
Reserved (default)
–
Configurable
–
Routing
interfaces
1st interface
Type of interface
Physics
electrically isolated
Interface power supply (15 to 30 VDC)
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06
CPU 313C-2 PtP
Yes
Yes
2
Yes
Max. 100
CPU 313C-2 PtP
Yes
Yes
4
Max. 4
Max. 4
Max. 4
Max. 22 bytes
22 bytes
Yes (server)
Max. 76 bytes
76 bytes (for X_SEND or X_RCV)
64 bytes (for X_PUT or X_GET as the server)
Yes
Yes (via CP and loadable FBs)
Max. 180 bytes (with PUT/GET)
64 bytes
Yes (via CP and loadable FCs)
Max. 8
Max. 7
1
From 1 to 7
Max. 7
1
From 1 to 7
Max. 4
4
From 0 to 4
No
CPU 313C-2 PtP
Integrated RS485 interface
RS 485
No
Max. 200 mA
Technical data of CPU 31xC
6.4 CPU 313C-2 PtP and CPU 313C-2 DP
CPU 313C-2 DP
CPU 313C-2 DP
Max. 4
CPU 313C-2 DP
6-17