Siemens SIMATIC S7-300 CPU Data: CPU 315-T-2 DP - Page 92

Technical data
8.2 CPU 315T-2 DP
Technical data
• Buffered period
Typically 6 weeks (at an ambient temperature of
104 °F)
• Accuracy
Deviation per day: < 10 s
Operating hours counter 1
• Number
0
• Value range
2 31 hours
(if SFC 101 is used)
• Granularity
1 hour
• Retentive
Yes; must be manually restarted after every restart
Time synchronization Yes
• In the PLC
Master/slave
• On MPI
Master/slave
S7 message functions
Number of stations that can be logged on for
signaling functions
16
(depends on the number of connections
configured for PG / OP and S7 basic
communication)
Process diagnostics messages Yes
• Simultaneously enabled interrupt S blocks
40
Test and startup functions
Status/control variables Yes
• Variables
Inputs, outputs, flags, DBs, timers, counters
• Number of variables
30
Of those as status variable Max. 30
Of those as control variable Max. 14
Force
• Variables
Inputs/outputs
• Number of variables
Max. 10
Block status Yes
Single-step Yes
Breakpoints 2
Diagnostic buffer Yes
• Number of entries (not configurable)
Max. 100
Communication functions
PG/OP communication Yes
Global data communication Yes
• Number of GD circuits
8
• Number of GD packets
Max. 8
Transmitters Max. 8
Receivers Max. 8
• Size of GD packets
Max. 22 bytes
Consistent data 22 bytes
S7 basic communication Yes
S7-300 CPU Data: CPU 315T-2 DP
8-6 Manual, 12/2005, A5E00427933-02