simatic s7-300 - megaelektrik.net

SIMATIC S7-300
Central processing units
CPU 312C to CPU 317F-2 DP
■ Technical specifications (continued)
4
6ES7 312-1AD10-
0AB0
6ES7 314-1AF10-
0AB0
6ES7 315-2AG10-
0AB0
6ES7 317-2AJ10-
0AB0
6ES7 318-2AJ00-
0AB0
Time
Clock
- Hardware clock (realtime clock) Yes Yes Yes Yes
- Software clock Yes
- buffered No Yes Yes Yes Yes
- Deviation per day, max 15 s 10 s 10 s 10 s 10 s
Run-time meter
- Quantity 1 1 1 4 8
-Number 0 0 0 0 to 3 0 to 7
- Range of values 0 to 2 31 hours (when 0 to 2 31 hours (when 0 to 2 31 hours (when 0 to 2 31 hours (when 0 to 32767 hours
using SFC 101) using SFC 101) using SFC 101) using SFC 101)
- Granularity 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; must be
restarted on each
complete restart
Time synchronization
- supported Yes Yes Yes Yes Yes
- on MPI, master Yes Yes Yes Yes Yes
- on MPI, slave Yes Yes Yes Yes Yes
- in AS, master Yes Yes Yes Yes Yes
- in AS, slave 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
12; depending on
the connections
configured for
PG/OP and S7
basic communication
16; depending on
the connections
configured for
PG/OP and S7
basic communication
32; depending on
the connections
configured for
PG/OP and S7
basic communication
• Process diagnostic messages Yes Yes Yes Yes Yes
• simultaneously active Alarm-S 20 40 40 60 100
blocks, max.
Test and startup functions
Status/modify
- Variable 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
- Number of variables, max. 30 30 30 30 70
- of which status variables, max. 30 30 30 30
- of which modify variables, max. 14 14 40 14
Forcing
- Forcing Yes Yes Yes Yes Yes
- Forcing, variables Inputs,
outputs
Inputs,
outputs
Inputs,
outputs
Inputs,
outputs
- Forcing, number of variables, 10 10 10 10 256
max.
• Status block Yes Yes Yes Yes Yes
• Single step Yes Yes Yes Yes Yes
• Number of breakpoints 2 2 2 2 4
Diagnostic buffer
- available Yes Yes Yes Yes Yes
- Number of inputs, max. 100 100 200 100 100
- adjustable No No No No No
Yes
Inputs, outputs,
memory markers,
distributed inputs,
distributed outputs
4/22 Siemens ST 70 · 2005