Siemens SIMATIC S7 System Manual page 19

Table 1- 1 S7-200 SMART CPUs
Compact serial, non-
expandable
Standard, expandable
Relay output
Transistor output (DC)
I/O points (built-in)
Table 1- 2 Compact serial, non-expandable CPUs
Features
Dimensions: W x H x D (mm) 90 x 100 x 81
User memory Program
User data
Retentive
On-board digi-
Inputs
•
tal I/O
Outputs
•
Expansion modules
Signal board
High-speed Single
counters (4 phase
total)
A/B phase
PID loops
Real-time clock with 7-day
back-up
You can configure areas of V memory, M memory, C memory (current values), and portions of T memory (current val-
1
ues on retentive timers) to be retentive, up to the specified maximum amount.
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
SR20 ST20 CR20s SR30 ST30
X
X X X
X X X
X
20 20 20 30
CPU CR20s
12 Kbytes
8 Kbytes
2 Kbytes max.
1
12 DI
•
8 DQ Relay
•
None
None
4 at 100 kHz
2 at 50 kHz
8
No
CR30s SR40 ST40
X
X X
X X
X
30 30 40
CPU CR30s CPU CR40s
110 x 100 x 81 125 x 100 x 81
12 Kbytes 12 Kbytes
8 Kbytes 8 Kbytes
2 Kbytes max. 2 Kbytes max.
1
18 DI
• •
12 DQ Relay
• •
None None
None None
4 at 100 kHz 4 at 100 kHz
2 at 50 kHz 2 at 50 kHz
8 8
No No
Product overview
1.1 S7-200 SMART CPU
CR40s SR60 ST60
X
X X X
X X
X X
40 40 60 60
CPU CR60s
175 x 100 x 81
12 Kbytes
8 Kbytes
2 Kbytes max.
1
36 DI
24 DI
24 DQ Relay
16 DQ Relay
None
None
4 at 100 kHz
2 at 50 kHz
8
No
CR60s
X
X
60
1
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