Siemens Simatic S7 Series System Manual

Technical specifications
A.6 Digital signal boards
S7-200 SMART
638 System Manual, 09/2015, A5E03822230-AC
Technical data
SB Digital 2 x Inputs / 2 x Digital Outputs (DT04)
Filter times Individually selectable on each channel:
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
Number of inputs on simultane-
ously
2
Cable length (max.), in meters Shielded: 500 m normal inputs
Unshielded: 300 m normal inputs
Table A- 127 Digital outputs
Technical data
SB Digital 2 x Inputs / 2 x Digital Outputs (DT04)
Number of outputs
2
Output type
Solid state - MOSFET (sourcing)
Voltage range
20.4 to 28.8 V DC
Logic 1 signal at max. current
20 V DC min.
Logic 0 signal at max. current
0.1 V DC max.
Rated current per point (max.)
0.5 A
Rated current per common
(max.)
1 A
Lamp load
5 W
On state contact resistance
0.6 Ω max.
Leakage current per point
10 μA max.
Surge current
5 A for 100 ms max.
Overload protection
No
Isolation (field side to logic)
500 V AC for 1 minute
Isolation groups 1
Inductive clamp voltage
L+ minus 48 V, 1 W dissipation
Switching delay 2 μs max. off to on
10 μs max. on to off
Output behavior in STOP
Last value or substitute value (default value 0)
Number of outputs on simulta-
neously
2
Cable length (max.), in meters Shielded: 500 m normal inputs
Unshielded: 150 m normal inputs

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.