Technical specifications
A.2 S7-200 SMART CPUs
S7-200 SMART
720
System Manual, V2.3, 07/2017, A5E03822230-AF
Technical data
CPU ST60 DC/DC/DC
CPU SR60 AC/DC/Relay
CPU CR60s AC/DC/Relay
Switching delay (Qa.0 to
Qa.3)
1.0 μs max., off to on
3.0 μs max., on to off
10 ms max.
10 ms max.
Switching delay (Qa.4 to
Qc.7)
50 μs max., off to on
200 μs max., on to off
10 ms max.
10 ms max.
Lifetime mechanical (no
load)
--
10,000,000 open/close cycles 10,000,000 open/close cycles
Lifetime contacts at rated
load
--
100,000 open/close cycles
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)
Last value or substitute value
(default value 0)
Number of outputs on
simultaneously
24
24
24
Cable length (max.), in
meters
Shielded: 500 m
Unshielded: 150 m
Shielded: 500 m
Unshielded: 150 m
Shielded: 500 m
Unshielded: 150 m