Boot Behavior Of The F_Dp Communication - Siemens SINUMERIK 840D sl Function Manual

Connecting sensors and actuators
8.4 Safety-related CPU-CPU communication (F_DP communication)
NCK processing times (F_DP clock cycle <= 2 * IPO)
Times: T(FRDP - DB18)
Formula
Maximum times
Typical times
1)
Times: T(SPL-OUTSE - FSDP)
Formula
Maximum times
Typical times
1)
Times:T(FRDP → FSDP)
Formula
Maximum times
Typical times
1)
F_DP clock cycle = n * IPO; with n = 1, 2, 3, ...
Typical times: IPO = 8 ms; n = 10 => F_DP clock cycle = 80 ms; OB40_INT = 2 ms ... 50 ms (maximum)
1)
NCK processing times (F_DP clock cycle > 2 * IPO)
Times: T(FRDP → SPL-INSE)
Formula
Maximum times
Typical times
1)
Times: T(SPL-OUTSE→ FSDP)
Formula
Maximum times
Typical times
1)
Times:T(FRDP → FSDP)
Formula
Maximum times
Typical times
1)
F_DP clock cycle = n * IPO; with n = 1, 2, 3, ...
Typical times: IPO = 8 ms; n = 10 => F_DP clock cycle = 80 ms; OB40_INT = 2 ms ... 50 ms (maximum)
1)
8.4.8

Boot behavior of the F_DP communication

When the control boots, then the F_DP communication, i.e. the F_DP communication
relationships of all parameterized SPL connections (F_SENDDP and F_RECVDP)
automatically boot and establish cyclic F-communication with their particular communication
partner.
246
2 * F_DP clock cycle + 1 * IPO
2 * 500 ms + 1 * 8 ms
2 * 16 ms + 1 * 8 ms
IPO + (0...m) * IPO + OB40_INT
8 + 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
2 * F_DP clock cycle + 1 * IPO
2 * 500 ms + 1 * 8 ms
2 * 80 ms + 1 * 8 ms
IPO + (n - 2) * IPO + (0...m) * IPO + OB40_INT
8 ms + 8 * 8 ms + 500 ms + 50 ms
8 ms + 8 * 8 ms + 2 ms
2 * F_DP clock cycle + F_DP clock cycle + (0...m) * IPO + OB40_INT
2 * 500 ms + 80 ms + 500 ms + 50 ms
4 * 80 ms + 80 ms + 2 ms
1008 ms
40 ms
558 ms
10 ms
1566 ms
50 ms
1008 ms
168 ms
622 ms
74 ms
1630 ms
242 ms
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated