Siemens SIMATIC S7 System Manual page 862

Index
instruction, 168
pulse output instruction (PLS), 285
Pulse width modulation (PWM)
cycle time, 289
instruction, 168
output, 596, 596
pulse output instruction (PLS), 285
pulse outputs, 598
PUT, 191
PWM wizard
PWMx_RUN subroutine, 598
PWMx_RUN, 598
Q
Queue interrupt overflow (SMB4), 805
quick access toolbar, 29
R
R (STL-Reset), 179
-R (STL-Subtract real), 297
R_S, 245
Rated voltages, 683
RCV (receive message control SMB86-SMB94 and
SMB186-SMB194), 819
READ_RTC, 185
READ_RTCX, 187
Real number values, 82
Receive instruction
break detection, 207
end character detection, 209
end conditions, 205
idle line detection, 205
intercharacter timer, 209
maximum character count, 210
message timer, 210
parity errors, 210
start character detection, 206
user termination, 211
Relay electrical service life, 684
Repeaters, 459
Reset-to-factory-defaults memory card, 167
Restoring data after power-on, 99
RET, 388
Retentive memory, 93
Retentive ranges, system block configuration, 141
RETI, 322
RI (STL-Reset immediate), 179
ROUND, 236
RS (LAD/FBD Reset dominant bistable), 180
862
RS232, 470
Freeport mode, 468
number of communication connections, 396
types of communication, 28, 395
RS232/PPI cable, 468
RS485
communication overview, 446
communication ports configuration, 136
number of communication connections, 396
sample network configurations, 451
setting baud rate and port network address, 449
types of communication, 28, 395
RS485 address
assigning, 454
RS485 communications
STEP 7-Micro/WIN SMART settings, 37
RS485 network
address, 452
configuring the RS485 network address for a
CPU, 452
searching for CPU, 457
RS485 network address
configuring, 452
RTA, 240
RTD analog inputs
coefficient, 153
rejection, 153
resistor, 153
RTD type, 153
scale, 153
smoothing, 153
system block configuration, 153
RTS (STL-Real to string), 245
RUN mode, 46, 100
RUN to STOP transition
analog output states, 151
digital output states, 140
Run-time and PLC compile errors, 792
S
S (STL-Set), 179
S_DI, 249
S_I, 249
S_R, 249
S7-200 SMART
as PROFIBUS slave device, 424
Safety circuits, 103
Sample control program, 39
Sample network configurations, RS485 devices, 451
Saving project, 44
System Manual, V2.3, 07/2017, A5E03822230-AF
S7-200 SMART