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Technical specifications
A.2 S7-200 SMART CPUs
A.2
S7-200 SMART CPUs
A.2.1
CPU ST20 and CPU SR20
A.2.1.1
General specifications and features
General specifications and features of the CPU ST20 and CPU SR20
Table A- 8
General specifications
Technical data
Article number
Dimensions W x H x D (mm)
Weight
Power dissipation
Current available (EM bus)
Current available (24 V DC)
Digital input current consumption
(24 V DC)
Table A- 9
CPU features
Technical data
User memory
Program
1
User data (V)
Retentive
On-board digital I/O
Process image
Analog image
Bit memory (M)
Temporary (local) memory (L)
Sequential control relays (S)
Expansion modules expansion
Signal board expansion
High-speed counters
Pulse outputs
2
Pulse catch inputs
570
CPU ST20 DC/DC/DC
6ES7 288-1ST20-0AA0
90 x 100 x 81
320 grams
20 W
1400 mA max. (5 V DC)
300 mA max. (sensor power)
4 mA/input used
Description
CPU ST20 DC/DC/DC, CPU SR20 AC/DC/Relay
12 Kbytes
8 Kbytes
10 Kbytes max.
1
12 inputs/8 outputs
256 bits of inputs (I) / 256 bits of outputs (Q)
56 words of inputs (AI) / 56 words of outputs (AQ)
256 bits
64 bytes in the main program and 64 bytes in each subroutine and interrupt routine
256 bits
6
1 max.
4 total
4 at 200 K Hz for single phase
•
2 at 100 K Hz for A/B phase
•
2 at 100 KHz
2
12
CPU SR20 AC/DC/Relay
6ES7 288-1SR20-0AA0
90 x 100 x 81
367.3 grams
14 W
1400 mA max. (5 V DC)
300 mA max. (sensor power)
4 mA/input used
System Manual, 09/2015, A5E03822230-AC
S7-200 SMART
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