Siemens Simatic S7 Series System Manual

Technical specifications
A.2 S7-200 SMART CPUs
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
587
Technical data
CPU ST40
DC/DC/DC
CPU SR40
AC/DC/Relay
CPU CR40
AC/DC/Relay
Hold up time (loss of power) 20 ms at 24 V DC 30 ms at 120 V AC
200 ms at 240 V AC
50 ms at 120 V AC
400 ms at 240 V AC
Internal fuse, not user replacea-
ble
3 A, 250 V, slow blow 3 A, 250 V, slow blow 3 A, 250 V, slow blow
Table A- 40 Sensor power
Technical data
CPU ST40
DC/DC/DC
CPU SR40
AC/DC/Relay
CPU CR40
AC/DC/Relay
Voltage range
20.4 to 28.8 V DC
20.4 to 28.8 V DC
20.4 to 28.8 V DC
Output current rating (max.)
300 mA
300 mA
300 mA
Maximum ripple noise (<10
MHz)
< 1 V peak to peak < 1 V peak to peak < 1 V peak to peak
Isolation (CPU logic to sensor
power)
Not isolated Not isolated Not isolated
A.2.3.2
Digital inputs and outputs
Table A- 41 Digital inputs
Technical data
CPU ST40
DC/DC/DC
CPU SR40
AC/DC/Relay
CPU CR40
AC/DC/Relay
Number of inputs
24
24
24
Type Sink/Source (IEC Type 1
sink, except I0.0 to I0.3)
Sink/Source (IEC Type 1
sink)
Sink/Source (IEC Type 1
sink)
Rated voltage
24 V DC at 4 mA, nominal
24 V DC at 4 mA, nominal
24 V DC at 4 mA, nominal
Continuous permissible voltage
30 V DC, max.
30 V DC, max.
30 V DC, max.
Surge voltage
35 V DC for 0.5 sec.
35 V DC for 0.5 sec.
35 V DC for 0.5 sec.
Logic 1 signal (min.) I0.0 to I0.3: 4 V DC at 8 mA
Other inputs: 15 V DC at
2.5 mA
I0.0 to I0.3: 4 V DC at 8 mA
15 V DC at 2.5 mA
15 V DC at 2.5 mA
Logic 0 signal (max.) I0.0 to I0.3: 1 V DC at 1 mA
Other inputs: 5 V DC at 1
mA
5 V DC at 1 mA 5 V DC at 1 mA
Isolation (field side to logic)
500 V AC for 1 minute
500 V AC for 1 minute
500 V AC for 1 minute
Isolation group 1 1 1
Filter times Individually selectable on
each channel (points I0.0 to
I1.5):
μs: 0.2, 0.4, 0.8, 1.6, 3.2,
6.4, 12.8
ms: 0.2, 0.4, 0.8, 1.6, 3.2,
6.4, 12.8
Individually selectable on
each channel (points I0.0 to
I1.5):
μs: 0.2, 0.4, 0.8, 1.6, 3.2,
6.4, 12.8
ms: 0.2, 0.4, 0.8, 1.6, 3.2,
6.4, 12.8
Individually selectable on
each channel (points I0.0 to
I1.5):
μs: 0.2, 0.4, 0.8, 1.6, 3.2,
6.4, 12.8
ms: 0.2, 0.4, 0.8, 1.6, 3.2,
6.4, 12.8

Siemens Simatic S7 Series Specifications

General

CPU	Varies by model (e.g., S7-300, S7-400, S7-1200, S7-1500)
Communication Interfaces	PROFIBUS, PROFINET, Ethernet, MPI
Programming	TIA Portal, STEP 7
Programming Languages	LAD, FBD, STL, SCL, GRAPH
I/O Modules	Digital, Analog, Specialty modules available
Operating Temperature	0°C to 60°C (standard models)
Mounting	DIN rail mounting
Operating Voltage	24V DC or 120/230V AC (varies by model)
Protection Class	IP20 (standard models)
Memory	Varies depending on the S7 model. Includes work memory (RAM) for program execution, load memory (EEPROM or Flash) for program storage, and system memory for operating system functions. Memory sizes range from kilobytes to megabytes.