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Siemens SIMATIC S7 System Manual page 860

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Index
O
O (STL-OR), 169
OB< (STL-OR compare byte less than), 230
OB<= (STL-OR compare byte less than or equal), 230
OB<> (STL-OR compare byte not equal), 230
OB= (STL-OR compare byte equal), 230
OB> (STL-OR compare byte greater than), 230
OB>= (STL-OR compare byte greater than or
equal), 230
OB1, 105
OD< (STL-OR compare double word less than), 230
OD<= (STL-OR compare double word less than or
equal), 230
OD<> (STL-OR compare double word not equal), 230
OD= (STL-OR compare double word equal), 230
OD> (STL-OR compare double word greater than), 230
OD>= (STL-OR compare double word greater than or
equal), 230
OI (STL-OR immediate), 171
OLD (STL stack-OR Load), 174
ON (STL-OR NOT), 169
ONI (STL-OR NOT immediate), 171
Open loop control, 595
Open user communication (OUC)
connection instructions, 418
connection types, 418
Open user communication (OUC) library
common library instruction parameters, 499
DISCONNECT instruction, 522
instruction error codes, 524
ISO_CONNECT instruction, 504
overview, 471
TCP_CONNECT instruction, 501
TCP_RECV instruction, 513
TCP_SEND instruction, 510
UDP_CONNECT instruction, 508
UDP_RECV instruction, 519
UDP_SEND instruction, 516
Opening earlier STEP 7-Micro/WIN projects, 108
Operating mode
changing to RUN, 46, 100
changing to STOP, 46, 100
startup options, 147
Operator stations, 103
Options
STL status, 571
OR< (STL-OR compare real less than), 230
OR<= (STL-OR compare real less than or equal), 230
OR<> (STL-OR compare real not equal), 230
OR= (STL-OR compare real equal), 230
OR> (STL-OR compare real greater than), 230
860
OR>= (STL-OR compare real greater than or
equal), 230
ORB (STL-OR byte), 336
ORD (STL-OR dword), 336
Ordering information, 843
ORW (STL-OR word), 336
OS<> (STL-OR string compare not equal), 234
OS= (STL-OR string compare equal), 234
OUC library example
Active partner (client) program, 526
CheckErrors subroutine program, 535
Passive partner (server) program, 537
OUC library example Active partner (client) program
symbol table, 536
OUC library example Passive partner (server) program
symbol table, 544
Output image register, 70
Outputs
coils, 178
example bit logic, 183
physical and in program, 69
set and reset bits, 179
set and reset dominant bistable, 180
writing, 71
Overvoltage, 682
OW< (STL-OR compare word less than), 230
OW<= (STL-OR compare word less than or equal), 230
OW<> (STL-OR compare word not equal), 230
OW= (STL-OR compare word equal), 230
OW> (STL-OR compare word greater than), 230
OW>= (STL-OR compare word greater than or
equal), 230
P
Password
lost or forgotten, 166
privilege levels, 143
Password protection, 143
PID auto-tune
auto-deviation, 586
auto-hysteresis, 586
exception conditions, 589
prerequisites, 586
PV out-of-range, 590
sequence, 587
PID loop control
loop definition table, 582
PID Tune control panel, 590
PID loop instruction
alarm checking, 320
System Manual, V2.3, 07/2017, A5E03822230-AF
S7-200 SMART

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