Siemens Sinumerik 840D sl Function Manual page 274

Connecting Sensors/Actuators
7.4 Safety- -related CPU- -CPU communication (F_DP communication)
PLC processing times
Times:T(FRDP - -> DB18)
Formula
Maximum times
1)
Typical times
Times: T(DB18 - -> FSDP)
Formula
Maximum times
1)
Typical times
Times: T(FRDP - -> FSDP)
Formula
Maximum times
1)
Typical times
F_DP clock cycle = n * IPO; with n = 1, 2, 3, ...
1) Typical times: IPO = 8 ms; n = 10 => F_DP clock cycle = 80 ms; OB1 = 30 ms
NCK processing times (F_DP clock cycle <= 2 * IPO)
Times: T(FRDP - -> SPL- -INSE)
Formula
Maximum times
1)
Typical times
Times: T(SPL- -OUTSE - -> FSDP)
Formula
Maximum times
1)
Typical times
Times: T(FRDP - -> FSDP)
Formula
Maximum times
1)
Typical times
F_DP clock cycle = n * IPO; with n = 1, 2, 3, ...
1) Typical times: IPO = 8 ms; n = 10 => F_DP clock cycle = 80 ms; OB40_INT = 2 ms ... 50 ms (maximum)
7-274
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
2 * F_DP clock cycle + 1 * OB1
2 * 500 ms + 1 * 150 ms
2 * 80 ms + 1 * 30 ms
2 * F_DP clock cycle + 1 * OB1
2 * 500 ms + 1 * 150 ms
2 * 80 ms + 1 * 30 ms
4 * F_DP clock cycle + 2 * OB1
4 * 500 ms + 2 * 150 ms
4 * 80 ms + 2 * 30 ms
2 * F_DP clock cycle + 1 * OB1
2 * 500 ms + 1 * 8 ms
2 * 16 ms + 1 * 8 ms
IPO + (0...m) * IPO + OB40_INT
8 ms + 500 ms + 50 ms
8 ms + 2 ms
2 * F_DP clock cycle + 2 * IPO + (0...m) * IPO + OB40_INT
2 * 500 ms + 2 * 8 ms + 500 ms + 50 ms
2 * 16 ms + 2 * 8 ms + 2 ms
1150 ms
190 ms
1150 ms
190 ms
2300 ms
380 ms
1008 ms
40 ms
558 ms
10 ms
1566 ms
50 ms
© Siemens AG 2015 All Rights Reserved
10/15