simatic s7-300 - megaelektrik.net

SIMATIC S7-300
Central processing units
CPU 312C to CPU 317F-2 DP
■ Technical specifications (continued)
6ES7 312-
5BD01-0AB0
6ES7 313-
5BE01-0AB0
6ES7 313-
6BE01-0AB0
6ES7 313-
6CE01-0AB0
6ES7 314-
6BF01-0AB0
6ES7 314-
6CF01-0AB0
Time
Clock
- Hardware clock (realtime clock) Yes Yes Yes Yes Yes
- Software clock Yes
- buffered No Yes Yes Yes Yes Yes
- Deviation per day, max 10 s 10 s 10 s 10 s 10 s
Run-time meter
- Quantity 1 1 1 1 1 1
-Number 0 0 0 0 0 0
- Range of values
2 31 hours
(when using
SFC 101)
2 31 hours
(when using
SFC 101)
2 31 hours
(when using
SFC 101)
2 31 hours
(when using
SFC 101)
2 31 hours
(when using
SFC 101)
2 31 hours
(when using
SFC 101)
- Granularity
1 hour 1 hour 1 hour 1 hour 1 hour 1 hour
- retentive
Yes; must be
restarted on
each complete
restart
Yes; must be
restarted on
each complete
restart
Yes; must be
restarted on
each complete
restart
Yes Yes Yes
Time synchronization
- supported Yes Yes Yes Yes Yes Yes
- on MPI, master Yes Yes Yes Yes Yes Yes
- on MPI, slave Yes Yes Yes Yes Yes Yes
- in AS, master Yes Yes Yes Yes Yes Yes
S7 message functions
• Number of stations that can log on
for message functions, max.
6; depending on
the connections
configured for
PG/OP and S7
basic communication
8; depending on
the connections
configured for
PG/OP and S7
basic communication
8; depending on
the connections
configured for
PG/OP and S7
basic communication
8 12 12
• Process diagnostic messages Yes Yes Yes Yes Yes Yes
• simultaneously active Alarm-S 20 20 20 20 40 40
blocks, max.
Test and startup functions
Status/modify
- Variable Yes Yes Yes Yes Yes Yes
-Variables
Inputs,
outputs,
flags, DB,
timers, counters
Inputs,
outputs,
flags, DB,
timers, counters
Inputs,
outputs,
flags, DB,
timers, counters
Inputs,
outputs,
flags, DB,
timers, counters
Inputs,
outputs,
flags, DB,
timers, counters
Inputs,
outputs,
flags, DB,
timers, counters
- Number of variables, max. 30 30 30 30 30 30
- of which status variables, max. 30 30 30 30 30 30
- of which modify variables, max. 14 14 14 14 14 14
Forcing
- Forcing Yes Yes Yes Yes Yes Yes
- Forcing, variables Inputs,
outputs
- Forcing, number of variables,
max.
Inputs,
outputs
Inputs,
outputs
Inputs,
outputs
Inputs,
outputs
10 10 10 10 10 10
• Status block Yes Yes Yes Yes Yes Yes
• Single step Yes Yes Yes Yes Yes Yes
• Number of breakpoints 2 2 2 2 2 2
Inputs,
outputs
4
Siemens ST 70 · 2005
4/11