References
E.5 Memory ranges and features
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
841
Memory ranges and features
The following table provides the memory ranges and features for V2.3 CPUs. For CPUs of
firmware versions prior to V2.3, refer to the
S7-200 SMART System Manual
for your specific
CPU model and version.
CPU CR20s,
CPU CR30s,
CPU CR40s,
CPU CR60s
User data size 8 KB 8 KB 12 KB 16 KB 20 KB
Process image input register
Process image output register Q0.0 to Q31.7 Q0.0 to Q31.7 Q0.0 to Q31.7 Q0.0 to Q31.7 Q0.0 to Q31.7
Analog inputs (read only) -- AIW0 to
AIQ0 to
AIW0 to AIW110 AIW0 to AIW110
Analog outputs (write only) -- AQW0 to
AQW0 to
AQW0 to
AQW0 to
Variable memory (V) VB0 to VB8191 VB0 to
VB0 to
VB0 to VB16383 VB0 to VB20479
1
Special Memory
(SM)
Total SM0.0 to
SM0.0 to
SM0.0 to
SM0.0 to
SM0.0 to
Read
only
SM0.0 to
SM29.7
SMB480.0 to
SM515.7
SM1000.0 to
SM0.0 to
SM29.7
SMB480.0 to
SM515.7
SM1000.0 to
SM0.0 to
SM29.7
SMB480.0 to
SM515.7
SM1000.0 to
SM0.0 to
SM29.7
SMB480.0 to
SM515.7
SM1000.0 to
SM0.0 to
SM29.7
SMB480.0 to
SM515.7
SM1000.0 to
Timers 256 (T0 to
256 (T0 to
256 (T0 to
256 (T0 to T255) 256 (T0 to
Retentive on-delay
1 ms T0, T64 T0, T64 T0, T64 T0, T64 T0, T64
10 ms T1 to T4, and
T1 to T4, and
T1 to T4, and
T65 to T68
T1 to T4, and
T1 to T4, and
100 ms T5 to T31, and
T5 to T31, and
T5 to T31, and
T69 to T95
T5 to T31, and
T5 to T31, and
On/Off delay
10 ms T33 to T36,
and
T33 to T36,
and
T33 to T36,
and T97 to
T100
T33 to T36, and
T97 to T100
T33 to T36, and
T97 to T100
100 ms T37 to T63,
and
T37 to T63,
and
T37 to T63,
and T101 to
T255
T37 to T63, and
T101 to T255
T37 to T63, and
T101 to T255
Counters 256 (C0 to
256 (C0 to
256 (C0 to
256 (C0 to
256 (C0 to
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