9
Reaction time
HB-37500-810-11-16F-EN SCU Installation Manual - Master and Slaves - SARC
Page 75 of 303
Status: 09.06.2022
9.
Reaction time
The reaction period is an important safety feature. The reaction time must be considered
for every application / for every applicative safety function. The following chapter lists the
reaction periods for particular functions. If need be, the reaction periods are listed in
relation to other parameters. If this information is not sufficient for a specific application,
the actual time behaviour must be validated against the target behaviour by means of
separate measurements. This concerns especially the use of filtering functions.
DANGER
Significant impairment of safety with incorrectly determined reaction
times
•
The reaction times for every applicative safety function must be
determined in nominal behaviour and must then be compared
with the actual value. For this comparison the information given
below must be used.
•
Particular care must be taken when using filter function.
Depending on filter length / filter time, the reaction period can be
considerably longer. This prolongation of the reaction time must
be considered during the safety relevated design.
•
In case of particularly critical problem formulations the temporal
behaviour must be validated by means of measurements.
•
During start-up of the device / alarm reset or error reset the
outputs may (depending on the application program) become
active over the response time period. This must be taken into
consideration when planning the safety function.
•
When using safe field bus connections, (FSoE), the system run-
time (watchdog) must be included.
9.1.
Response time at standstill:
Reaction periods are calculated on the basis of the cycle time of the
SCU
system. During
operation, the cycle time of the SCU system is
T_cycle = 16 ms
.
The indicated reaction periods correspond to the respective maximum runtime for the
specific application within the SCU block.
Depending on the application, further application independent response times of the
sensors and actuators used must be added.
Summary of Contents for SCU Series
Page 178: ...Appendix data sheets SCU Master ...
Page 179: ...Appendix data sheets SCU Master ...
Page 180: ...Appendix data sheets SCU Master ...
Page 181: ...Appendix data sheets SCU Master ...
Page 182: ...Appendix data sheets SCU Master ...
Page 183: ...Appendix data sheets SCU Master ...
Page 184: ...Appendix data sheets SCU Master ...
Page 185: ...Appendix data sheets SCU Master ...
Page 186: ...Appendix data sheets SCU Master ...
Page 187: ...Appendix data sheets SCU Master ...
Page 188: ...Appendix data sheets SCU Master ...
Page 189: ...Appendix data sheets SCU Master ...
Page 190: ...Appendix data sheets SCU Master ...
Page 191: ...Appendix data sheets SCU Master ...
Page 192: ...Appendix data sheets SCU Master ...
Page 193: ...Appendix data sheets SCU Master ...
Page 194: ...Appendix data sheets SCU Master ...
Page 195: ...Appendix data sheets SCU Master ...
Page 196: ...Appendix data sheets SCU Master ...
Page 197: ...Appendix data sheets SCU Master ...
Page 198: ...Appendix data sheets SCU Master ...
Page 199: ...Appendix data sheets SCU Slaves ...
Page 200: ...Appendix data sheets SCU Slaves ...
Page 201: ...Appendix data sheets SCU Slaves ...
Page 202: ...Appendix data sheets SCU Slaves ...
Page 203: ...Appendix data sheets SCU Slaves ...
Page 204: ...Appendix data sheets SCU Slaves ...
Page 205: ...Appendix data sheets SCU Slaves ...
Page 206: ...Appendix data sheets SCU Slaves ...
Page 207: ...Appendix data sheets SCU Slaves ...
Page 208: ...Appendix data sheets SCU Slaves ...
Page 209: ...Appendix data sheets SCU Slaves ...
Page 210: ...Appendix data sheets SCU Slaves ...
Page 211: ...Appendix data sheets SCU Slaves ...
Page 212: ...Appendix data sheets SCU Slaves ...
Page 213: ...Appendix data sheets SCU Slaves ...
Page 214: ...Appendix data sheets SCU Slaves ...
Page 215: ...Appendix data sheets SCU Slaves ...
Page 216: ...Appendix data sheets SCU Slaves ...
Page 217: ...Appendix data sheets SCU Slaves ...
Page 218: ...Appendix data sheets SCU Slaves ...
Page 219: ...Appendix data sheets SCU Slaves ...
Page 220: ...Appendix data sheets SCU Slaves ...
Page 221: ...Appendix data sheets SCU Slaves ...
Page 222: ...Appendix data sheets SCU Slaves ...
Page 223: ...Appendix data sheets SCU Slaves ...
Page 224: ...Appendix data sheets SCU Slaves ...
Page 225: ...Appendix data sheets SCU Slaves ...
Page 226: ...Appendix data sheets SCU Slaves ...
Page 227: ...Appendix data sheets SCU Slaves ...
Page 228: ...Appendix data sheets SCU Slaves ...
Page 229: ...Appendix data sheets SCU Slaves ...
Page 230: ...Appendix data sheets SCU Slaves ...
Page 231: ...Appendix data sheets SCU Slaves ...
Page 232: ...Appendix data sheets SCU Slaves ...
Page 233: ...Appendix data sheets SCU Slaves ...
Page 234: ...Appendix data sheets SCU Slaves ...
Page 235: ...Appendix data sheets SCU Slaves ...
Page 236: ...Appendix data sheets SCU Slaves ...
Page 237: ...Appendix data sheets SCU Slaves ...
Page 238: ...Appendix data sheets SCU Slaves ...
Page 239: ...Appendix data sheets SCU Slaves ...
Page 240: ...Appendix data sheets SCU Slaves ...
Page 241: ...Appendix data sheets SCU Slaves ...
Page 242: ...Appendix data sheets SCU Slaves ...
Page 243: ...Appendix data sheets SCU Slaves ...
Page 244: ...Appendix data sheets SCU Slaves ...
Page 245: ...Appendix data sheets SCU Slaves ...
Page 246: ...Appendix data sheets SCU Slaves ...
Page 247: ...Appendix data sheets SCU Slaves ...
Page 248: ...Appendix data sheets SCU Slaves ...
Page 249: ...Appendix data sheets SCU Slaves ...
Page 250: ...Appendix data sheets SCU Slaves ...
Page 251: ...Appendix data sheets SCU Slaves ...
Page 252: ...Appendix data sheets SCU Slaves ...
Page 253: ...Appendix data sheets SCU Slaves ...
Page 254: ...Appendix data sheets SCU Slaves ...
Page 255: ...Appendix data sheets SCU Slaves ...
Page 256: ...Appendix data sheets SCU Slaves ...
Page 257: ...Appendix data sheets SCU Slaves ...
Page 258: ...Appendix data sheets SCU Slaves ...
Page 259: ...Appendix data sheets SCU Slaves ...
Page 260: ...Appendix data sheets SCU Slaves ...
Page 261: ...Appendix data sheets SCU Slaves ...
Page 262: ...Appendix data sheets SCU Slaves ...
Page 263: ...Appendix data sheets SCU Slaves ...
Page 264: ...Appendix data sheets SCU Slaves ...
Page 265: ...Appendix data sheets SCU Slaves ...
Page 266: ...Appendix data sheets SCU Slaves ...
Page 267: ...Appendix data sheets SCU Slaves ...
Page 268: ...Appendix data sheets SCU Slaves ...
Page 269: ...Appendix data sheets SCU Slaves ...
Page 270: ...Appendix data sheets SCU Slaves ...
Page 271: ...Appendix data sheets SCU Slaves ...
Page 272: ...Appendix data sheets SCU Slaves ...
Page 273: ...Appendix data sheets SCU Slaves ...
Page 274: ...Appendix data sheets SCU Slaves ...
Page 275: ...Appendix data sheets SCU Slaves ...
Page 276: ...Appendix data sheets SCU Slaves ...
Page 277: ...Appendix data sheets SCU Slaves ...
Page 278: ...Appendix data sheets SCU Slaves ...
Page 279: ...Appendix data sheets SCU Slaves ...
Page 280: ...Appendix data sheets SCU Slaves ...
Page 281: ...Appendix data sheets SCU Slaves ...
Page 282: ...Appendix data sheets SCU Slaves ...
Page 283: ...Appendix data sheets SCU Slaves ...
Page 284: ...Appendix data sheets SCU Slaves ...
Page 285: ...Appendix data sheets SCU Slaves ...
Page 286: ...Appendix data sheets SCU Slaves ...
Page 287: ...Appendix data sheets SCU Slaves ...
Page 288: ...Appendix data sheets SCU Slaves ...
Page 289: ...Appendix data sheets SCU Slaves ...
Page 290: ...Appendix data sheets SCU Slaves ...
Page 291: ...Appendix data sheets SCU Slaves ...
Page 292: ...Appendix data sheets SCU Slaves ...
Page 293: ...Appendix data sheets SCU Slaves ...
Page 294: ...Appendix data sheets SCU Slaves ...
Page 295: ...Appendix data sheets SCU Slaves ...
Page 296: ...Appendix data sheets SCU Slaves ...
Page 297: ...Appendix technical data SCU series Dimension Drawing ...
Page 298: ...Appendix technical data SCU series Dimension Drawing ...
Page 299: ...Appendix technical data SCU series Dimension Drawing ...
Page 300: ...Appendix technical data SCU series Dimension Drawing ...
Page 301: ...Appendix technical data SCU series Dimension Drawing ...
Page 302: ...Appendix technical data SCU series Dimension Drawing ...
Page 303: ...Appendix technical data SCU series Dimension Drawing ...