Siemens CPU 31 Series Technical Data Manual page 172

Technical data of CPU 31x
7.2 CPU 312
Technical data
Force
•
•
Block status
Single-step
Breakpoints
Diagnostic buffer
•
Communication functions
PG/OP communication
Global data communication
•
•
•
S7 basic communication
•
S7 communication
•
•
S5compatible communication
Number of connections
Can be used for
•
•
•
Routing
interfaces
1st interface
Type of interface
Physics
electrically isolated
7-6
Variables
Number of variables
Number of entries (not configurable)
Number of GD circuits
Number of GD packets
Sender
–
Receiver
–
Size of GD packets
Consistent data
–
User data per job
Consistent data
–
As server
User data per job
Consistent data
–
PG communication
Reserved (default)
–
Configurable
–
OP communication
Reserved (default)
–
Configurable
–
S7-based communication
Reserved (default)
–
Configurable
–
Yes
Inputs, outputs
Max. 10
Yes
Yes
2
Yes
Max. 100
Yes
Yes
4
Max. 4
Max. 4
Max. 4
Max. 22 bytes
22 bytes
Yes
Max. 76 bytes
76 bytes (for X_SEND or X_RCV)
64 bytes (for X_PUT or X_GET as the server)
Yes
Max. 180 bytes (with PUT/GET)
64 bytes
Yes (via CP and loadable FCs)
Max. 6
Max. 5
1
From 1 to 5
Max. 5
1
From 1 to 5
Max. 2
2
from 0 to 2
No
Integrated RS485 interface
RS 485
No
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06