Siemens SIMATIC S7 - S7-200 SMART Cpus; CPU ST20, CPU SR20, and CPU Cr20 S; General Specifications and Features

Technical specifications
A.2 S7-200 SMART CPUs
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
685
A.2
S7-200 SMART CPUs
A.2.1
CPU ST20, CPU SR20, and CPU CR20s
A.2.1.1
General specifications and features
General specifications and features of the CPU ST20, CPU SR20, and CPU CR20s
Table A- 8 General specifications
Technical data
CPU ST20 DC/DC/DC
CPU SR20 AC/DC/Relay
CPU CR20s AC/DC/Relay
Article number
6ES7288-1ST20-0AA0
6ES7288-1SR20-0AA0
6ES7288-1CR20-0AA1
Dimensions W x H x D
(mm)
90 x 100 x 81 90 x 100 x 81 90 x 100 x 81
Weight
320 grams
367.3 grams
363 grams
Power dissipation 20 W 14 W 6 W
Current available (EM
bus)
1400 mA max. (5 V DC) 1400 mA max. (5 V DC) Not available
Current available
(24 V DC)
300 mA max. (sensor power) 300 mA max. (sensor power) Not available
Digital input current con-
sumption
(24 V DC)
4 mA/input used 4 mA/input used 4 mA/ input used