Siemens SIMATIC S7-200 System Manual page 544

S7-200 Programmable Controller System Manual
Program control instructions
basic program control, 167
conditional end, 167
for--next loop, 169
jump instructions, 171
sequence control relay (SCR), 172
stop, 167
watchdog reset, 167
Program editors, 55
conventions, 58
Function Block Diagram (FBD), 55
Ladder Logic (LAD), 55
opening, 11
selecting, 55
Statement List (STL), 55
Program memory, increase, 47
Program, sample, controlling Position module, 302
Programming
EM 253 Position Module, 266
high--speed counters, 119
Programming cable, 5
Programming software, order numbers, 496
Proportional term, PID algorithm, 147
Protection circuit, 393
Protocol, communication
selecting, 214
user--defined, 226
Protocols
PROFIBUS--DP, 440
supported by STEP 7--Micro/WIN, 225
PTO instructions, error codes, 264
PTO Output, 258
PTO/PWM functions, registers (WMB66 to SMB85),
489
PTO_CTRL, 260
PTO0, PTO1 Profile Definition Table (SMB166 to
SMB185), 492
PTOx_CTRL, 260
PTOx_LDPOS, 263
PTOx_MAN, 262
PTOx_RUN, 261
Pulse catch, 44
Pulse catch feature, 45
Pulse Output instruction (PLS), 133
Pulse outputs
high--speed, 50
pulse output instruction (PLS), 133
pulse train output instruction (PTO), 133
pulse width modulation instruction (PWM), 133
Pulse timer instruction (TP), 201
Pulse Train Output
PTOx_ADV, 264
PTOx_CTRL, 260
PTOx_LDPOS, 263
PTOx_MAN, 262
PTOx_RUN, 261
Pulse train output instruction (PTO), 50, 133
configuring with SM memory, 136
cycle time, 134
multiple--segment pipelining, 135
Position Control wizard, 133
profile table values, 138
single--segment pipelining, 134
530
stepper motor control, 138
understanding, 134
Pulse Width Modulation, 253
configuring PWM output, 253
Pulse width modulation instruction (PWM), 50, 133
configuring with SM memory, 136
cycle time, 135
Position Control wizard, 133
profile table values, 138
stepper motor control, 138
understanding, 135
update methods, 136
Pulse Width Modulation Output, PWMx_RUN, 254
PV out of range, PID auto--tune, 387
PWM Output, configuring, 253
PWMx_RUN, 254
pulse width modulation instruction, 254
PWMx_RUN instruction, error codes, 254
Q
Q memory, 28
Queue overflow (SMB4), 483
Queues, interrupt routines, 157
Quick reference information, 505
R
Radio modem
PPI mode, 232
PPI/Freeport mode, 232
with PPI Multi--Master cable, 232
Rail
dimensions, 18
mounting, 18
Ranges, PID loop, 150
RCPx_Read subroutine, recipe instruction, 371
Read real--time clock extended instruction, 79
Read real--time clock instruction, 78
Reading data from inputs, 24, 25
Real math instructions, example, 141
Real number values, 27, 32
Real to ASCII instruction, 105
example, 106
Real--time clock instructions, 78
Receive instruction, 86
break detection, 90
end character detection, 91
end conditions, 89
example, 93
Freeport mode, 86
idle line detection, 89
intercharacter timer, 91
maximum character count, 92
message timer, 91
parity errors, 92
receiving data, 87
SMB86 to SMB94, SMB186 to SMB194, 490
start character detection, 89
start conditions, 89
user termination, 92