Siemens SIMATIC S7 - Page 710

Technical specifications
A.2 S7-200 SMART CPUs
S7-200 SMART
710 System Manual, V2.3, 07/2017, A5E03822230-AF
Technical data
CPU ST40 DC/DC/DC
CPU SR40 AC/DC/Relay
CPU CR40s 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
Qb.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 state in STOP
mode
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
16 16 16
Cable length (max.), in
meters
Shielded: 500 m
Unshielded: 150 m
Shielded: 500 m
Unshielded: 150 m
Shielded: 500 m
Unshielded: 150 m