Set, Reset - Siemens SIMATIC S7-200 System Manual
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Also See for SIMATIC S7-200:
- System manual (554 pages) ,
- Getting started (65 pages) ,
- Manual (55 pages)
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Set, Reset
L
A
D
F
B
D
221
222 224
Inputs/Outputs
bit (LAD, FBD)
I, Q, M, SM, T, C, V, S, L
Input (LAD)
Power Flow
Input (FBD)
I, Q, M, SM, T, C, V, S, L, Power Flow
S7-200 Programmable Controller System Manual
A5E00066097-02
When Set and Reset are executed, the value specified
by the bit or OUT parameter is set or reset.
bit
S
Error conditions that set ENO = 0: SM4.3 (run-time),
0006 (indirect address), 0091 (operand out of range)
bit
R
bit
S
bit
R
226
Operands
IEC 1131-3 Instructions
Data Types
BOOL
BOOL
BOOL
10-5
- Quick Links:
- Installing an S7-200 Micro Plc
- Configuration
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Questions and answers
settings get erased
Settings on the Siemens SIMATIC S7-200 may get erased if the memory areas are not configured to be retentive. Only the first 14 bytes of M memory (MB0 to MB13) can be configured as retentive, which means they are saved to EEPROM when the CPU loses power. If memory is not set as retentive, its contents are lost during a power cycle. Also, changes made in RUN mode may not take effect permanently until a power cycle or STOP-to-RUN transition occurs.
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