Siemens Simatic S7-300 Technical Data Manual page 195

Technical data
S7 signaling functions
Number of stations that can be logged on for
signaling functions
Process diagnostics messages
•
Testing and commissioning functions
Status/control variables
•
•
Forcing
•
•
Block status
Single step
Breakpoints
Diagnostic buffer
•
Communication functions
PG/OP communication
Global data communication
•
•
•
S7 basic communication
•
S7 communication
•
•
•
S5-compatible communication
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
Simultaneously enabled interrupt S blocks
Variables
Number of variables
Of those as status variable
–
Of those as control variable
–
Variables
Number of variables
Number of entries (not configurable)
Number of GD circuits
Number of GD packets
Sending stations
–
Receiving stations
–
Length of GD packets
Consistent data
–
User data per request
Consistent data
–
As server
as client
User data per request
Consistent data
–
Technical data of CPU 31x
32
(depends on the number of connections
configured for PG / OP and S7 basic
communication)
Yes
60
Yes
Inputs, outputs, memory bits, DBs, timers,
counters
30
Max. 30
Max. 14
Inputs/Outputs
Max. 10
Yes
Yes
2
Yes
Max. 100
Yes
Yes
8
Max. 8
Max. 8
Max. 8
max. 22 bytes
22 bytes
Yes
max. 76 bytes
76 bytes (for X_SEND or X_RCV)
76 bytes (for X_PUT or X_GET as the server)
Yes
Yes
Yes (via CP and loadable FBs)
Max. 180 bytes (with PUT/GET)
160 byte (as the server)
Yes (via CP and loadable FCs)
7.6 CPU 317-2 DP
7-29