Siemens Sinumerik 840D sl Function Manual page 279

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S F_RECVDP (NCK)
-- $A_FRDP_ERROR[1...n] = 1
-- $A_FRDP_DIAG[1...n] = X (value corresponding to the identified communi-
cation error)
-- $A_FRDP_SUBS_ON[1...n] = 1
-- $A_FRDP_ACK_REQ[1...n] = 1
-- $A_FRDP_SENDMODE[1...n] = X (value corresponding to the last valid F
telegram)
-- $A_INSE = $A_FRDP_SUBS
S F_RECVDP (PLC)
-- FRDP[1...3] or FRDP_HF[4..16]
-- .ERROR = TRUE
-- .SUBS_ON = TRUE
-- .ACK_REQ = TRUE
-- .SENDMODE = X (value corresponding to the received F telegram)
-- .DIAG = X (value corresponding to the detected communication error)
-- .RETVAL14 = 0
-- .RETVAL15 = 0
SPL_DATA.INSEP[x...y] = FRDP[1...3].SUBS or FRDP_HF[4..16].SUBS
Note
After an F_DP communication error, to enable F_DP communication, a user
acknowledgment using the interface signal DB18.FRDP_ACK_REI is sufficient.
If, in addition to the F_DP communication, pending alarms with NCK responses --
and possibly Stop D/E -- are to be reset, then the user acknowledgment must be
realized using a channel_1 reset.
After the user acknowledgment has been given, the F_DP communication is repre-
sented in the output data of the user interface as follows:
S F_SENDDP (NCK)
-- $A_FSDP_ERROR[1...n] = 0
-- $A_FSDP_DIAG[1...n] = 0
-- $A_FSDP_SUBS_ON[1...n] = 0
S F_SENDDP (PLC)
-- FSDP[1...3] or FSDP_HF[4..16]
-- .ERROR = FALSE
-- .SUBS_ON = FALSE
-- .DIAG = 0
-- .RETVAL14 = 0
-- .RETVAL15 = 0
S F_RECVDP (NCK)
-- $A_FRDP_ERROR[1...n] = 0
-- $A_FRDP_DIAG[1...n] = 0
-- $A_FRDP_SUBS_ON[1...n] = 0
-- $A_FRDP_ACK_REQ[1...n] = 0
-- $A_FRDP_SENDMODE[1...n] = X (value corresponding to the F telegram)
-- $A_INSE = process values
© Siemens AG 2015 All Rights Reserved
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
7-279