Communication Error After The Control Boots And Active Spl Processing - Siemens Sinumerik 840D sl Function Manual

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-- .RETVAL14 = 0

-- .RETVAL15 = 0

When cyclic F communication is established, the process values received by

F_SENDDP are output at the SPL inputs SPL inputs $A_INSE / SPL_DATA.IN-

S $A_INSE / SPL_DATA.INSEP[x...y] = process values

User acknowledgment is not required for the transition from booting into cyclic F

communication.

Communication error after the control boots and active SPL

After a communication error has been detected, F_RECVDP outputs the substitute

values $A_FRDP_SUBS / FRDP[1..3].SUBS or FRDP_HF[4...16] programmed in

the user program to the SPL inputs ($A_INSE / SPL_DATA.INSEP).

F_SENDDP and F_RECVDP initiate the error response $A_FSDP/

FRDP_ERR_REAC (PLC: FSDP/FRDP[1..3].ERR_REAC) or FRDP_HF[4...16].

F_SENDDP and F_RECVDP immediately attempt to resume cyclic F_DP commu-

There is no time limit when waiting for the communication partner.

The error state of the F_DP communication is represented as follows in the output

data of the user interface:

S F_SENDDP (NCK)

-- $A_FSDP_ERROR[1...n] = 1

-- $A_FSDP_DIAG[1...n] = X (value corresponding to the detected communi-

cation error)

-- $A_FSDP_SUBS_ON[1...n] = 1

SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition

7.4 Safety- -related CPU- -CPU communication (F_DP communication)

Connecting Sensors/Actuators

Sinamics s120