Technical data
Number of inputs on sim-
ultaneously
Cable length (max.), in
meters
Table A- 46
Digital outputs
Technical data
Number of outputs
Type
Voltage range
Logic 1 signal at max.
current
Logic 0 signal with 10 KΩ
load
Rated current per point
(max.)
Rated current per com-
mon (max.)
Lamp load
ON state resistance
Leakage current per point
Surge current
Overload protection
Isolation (field side to
logic)
Isolation resistance
Isolation between open
contact
Isolation groups
Inductive clamp voltage
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
CPU ST40 DC/DC/DC
24
I0.0 to I0.3:
Shielded (only):
500 m normal (low-speed)
•
inputs,
50 m HSC (high-speed)
•
inputs
All other inputs:
Shielded:
500 m normal inputs
•
Unshielded:
300 m normal inputs
•
CPU ST40 DC/DC/DC
16
Solid state - MOSFET (sourc-
ing)
20.4 to 28.8 V DC
20 V DC min.
0.1 V DC max.
0.5 A
6 A
5 W
0.6 Ω max.
10 μA max.
8 A for 100 ms max.
No
500 V AC for 1 minute
--
--
2
L+ minus 48 V DC, 1 W dissi-
pation
CPU SR40 AC/DC/Relay
24
All inputs:
Shielded:
500 m normal inputs
•
50 m HSC inputs
•
Unshielded:
300 m normal inputs
•
CPU SR40 AC/DC/Relay
16
Relay, dry contact
5 to 30 V DC or 5 to 250 V
AC
--
--
2 A
10 A
30 W DC / 200 W AC
0.2 Ω max. when new
--
7 A with contacts closed
No
1500 V AC for 1 minute (coil
to contact)
None (coil to logic)
100 MΩ min. when new
750 V AC for 1 minute
4
--
Technical specifications
A.2 S7-200 SMART CPUs
CPU CR40s AC/DC/Relay
24
All inputs:
Shielded:
500 m normal inputs
•
50 m HSC inputs
•
Unshielded:
300 m normal inputs
•
CPU CR40s AC/DC/Relay
16
Relay, dry contact
5 to 30 V DC or 5 to 250 V
AC
--
--
2 A
10 A
30 W DC / 200 W AC
0.2 Ω max. when new
--
7 A with contacts closed
No
1500 V AC for 1 minute (coil
to contact)
None (coil to logic)
100 MΩ min. when new
750 V AC for 1 minute
4
--
709