Siemens SIMATIC S7-1200 - Page 1368

Technical specifications
A.2 General technical specifications
S7-1200 Programmable controller
1368 System Manual, V4.2, 09/2016, A5E02486680-AK
Data for selecting an actuator
120 V
AC
1.0 A 1.0 million
120 V
AC
0.5 A 1.5 million
230 V
AC
2.0 A 0.7 million
230 V
AC
1.0 A 1.0 million
230 V
AC
0.5 A 1.5 million
Activating a digital input
Possible
Switching frequency
Mechanical
Max. 10 Hz
At ohmic load
Max. 1 Hz
At inductive load (according to IEC
947-5-1 DC13/AC15)
Max. 0.5 Hz
At lamp load
Max. 1Hz
Internal CPU memory retention
● Lifetime of retentive data and data log data: 10 years
● Power down retentive data, Write cycle endurance: 2 million cycles
● Data log data, up to 2 KB per data log entry, Write cycle endurance: 500 million data log
entries
Note
Effect of data logs on internal CPU memory
Each data log write consumes at a minimum 2 KB of memory. If your program writes small
amounts of data frequently, it is consuming at least 2 KB of memory on each write. A better
implementation would be to accumulate the small
data items in a data block (DB), and to
write the data block to the data log at less frequent intervals.
If your program writes many data log entries at a high frequency, consider using a
replaceable SD memory card.