Siemens Simatic S7 Series

Technical specifications
A.2 S7-200 SMART CPUs
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
577
A.2.2
CPU ST30 and CPU SR30
A.2.2.1
General specifications and features
General specifications and features of the CPU ST30 and CPU SR30
Table A- 21 General specifications
Technical data
CPU ST30 DC/DC/DC
CPU SR30 AC/DC/Relay
Article number
6ES7 288-1ST30-0AA0
6ES7 288-1SR30-0AA0
Dimensions W x H x D (mm) 110 x 100 x 81 110 x 100 x 81
Weight
375 g
435 g
Power dissipation
12 W
14 W
Current available (EM bus)
1400 mA max. (5 V DC)
1400 mA max. (5 V DC)
Current available (24 V DC)
300 mA max. (sensor power)
300 mA max. (sensor power)
Digital input current consumption
(24 V DC)
4 mA/ input used 4 mA/ input used
Table A- 22 CPU features
Technical data
Description
CPU ST30 DC/DC/DC
CPU SR30 AC/DC/Relay
User memory
1
Program
18 Kbytes
18 Kbytes
User data (V)
12 Kbytes
12 Kbytes
Retentive
10 Kbytes max.
1
10 Kbytes max.
1
On-board digital I/O
18 inputs/12 outputs
18 inputs/12 outputs
Process image 256 bits of inputs (I) / 256 bits of outputs
(Q)
256 bits of inputs (I) / 256 bits of outputs
(Q)
Analog image 56 words of inputs (AI) / 56 words of
outputs (AQ)
56 words of inputs (AI) / 56 words of out-
puts (AQ)
Bit memory (M)
256 bits
256 bits
Temporary (local) memory (L) 64 bytes in the main program and 64
bytes in each subroutine and interrupt
routine
64 bytes in the main program and 64 bytes
in each subroutine and interrupt routine
Sequential control relays (S)
256 bits
256 bits
Expansion modules expansion
6
6
Signal board expansion 1 max. 1 max.
High-speed counters 4 total
• 4 at 200 KHz for single phase
• 2 at 100 KHz for A/B phase
4 total
• 4 at 200 KHz for single phase
• 2 at 100 KHz for A/B phase
Pulse outputs
2
3 at 100 KHz --
Pulse catch inputs
12
12
Cyclic interrupts
2 at 1 ms resolution
2 at 1 ms resolution