Siemens Simatic S7 Series

Technical specifications
A.3 Digital inputs and outputs expansion modules (EMs)
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
605
Table A- 70 Digital outputs
Model
EM Digital 8 x Outputs (EM DT08)
EM Digital Output 8 x Relay (EM DR08)
Number of outputs
8
8
Type Solid state - MOSFET (sourcing) Relay, dry contact
Voltage range
20.4 to 28.8 V
5 to 30 V DC or 5 to 250 V AC
Logic 1 signal at max. current
20 V
-
Logic 0 signal with 10K Ω load
0.1 V
-
Rated current per point (max.)
0.75 A
2.0 A
Rated current per common
(max.)
3 A 8 A
Lamp load
5 W DC
30 W DC / 200 W AC
ON state contact resistance
0.6 Ω
0.2 Ω max. when new
Leakage current per point
10 μA
--
Surge current
8 A for 100 ms
7 A with contacts closed
Overload protection
No
No
Isolation (field side to logic) Optical, 500 V AC for 1 minute 1500 V AC for 1 minute (coil to contact)
None (coil to logic)
Isolation resistance
--
100 M Ω min. when new
Isolation between open contacts
--
750 V AC for 1 minute
Isolation groups
2
2
Inductive clamp voltage
Minus 48 V DC
--
Switching delay Switch on less than 50 μs and switch off
less than 200 μS
10 ms max.
Lifetime mechanical (no load) -- 10,000,000 open/close cycles
Lifetime contacts at rated load
--
100,000 open/close cycles
Output behavior in STOP Last value or substitute value (default
value 0)
Last value or substitute value (default value
0)
Number of outputs on simulta-
neously
8 8
Cable length (max.), in meters Shielded: 500 m
Unshielded: 150 m
Shielded: 500 m
Unshielded: 150 m