Selection of a safety sub-function via safe communication

The response times for the safe communication always relate to the safe protocol and not to the external interface of the safety option. All response times must be multiplied by the factor 1.002.

Calculation factor

Calculation specification response time

STO

T_InputProcessing_F-PO + 2 × T_Sys + 1 ms

SOS

T_InputProcessing_F-DI + T_Sys

SS1-r

T_InputProcessing_F-PO + 2 × T_Sys + SSx‑r monitoring delay t2 (8706.9) + Brake application timeIf SBC enable (8706.14) = no, then the brake application time = 0 (8706.15) + Actual_speed (8700.79)/SSx‑r deceleration a (8706.10) + SSx‑r jerk timeIf ramp monitoring = linear, then the jerk time = 0 t3 (8706.11) + 1 ms

SS1-t

T_InputProcessing_F-PO + 2 × T_Sys + SSx‑t delay t1 (8706.8) + Brake application time If SBC enable (8706.14) = no, then the brake application time = 0 (8706.15) + 1 ms

SS2-t

T_InputProcessing_F-DI + T_Sys + SSx‑t delay t1 (8706.8)

SLS

T_InputProcessing_F-PO + T_Sys + SSx-r monitoring delay t2 (8706.23) + v_Start/SSx-r deceleration a (8706.27) + SSx-r jerk time t3If ramp monitoring = linear, then the jerk time = 0 (8706.28)

  • SLS ramp start at actual speed = 0
  • v_Start = maximum speedMaximum speed (8707.1) or other SLS limit speed in the same effective direction - limit speed (8706.24)
  • SLS ramp start at actual speed = 1 and ramp monitoring = linear
  • v_Start = actual speed - limit speed (8706.24)
  • SLS ramp start at actual speed = 1 and ramp monitoring = jerk-limited
  • v_Start = actual speed + SLS speed offset v (8706.36) - limit speed (8706.24)

SDI

T_InputProcessing_F-PO + T_Sys

SSR

T_InputProcessing_F-DI + T_Sys + monitoring delay t2 (8706.53)

SLI

T_InputProcessing_F-DI + T_Sys