Siemens Sinumerik 840D sl Diagnostic Manual page 447

03/2009
Definitions: The F_DP communication with the external communication partner is disturbed, and the programmed
error reaction is $A_FSDP_/FRDP_ERR_REAC = 2 (alarm, display only).
The communication type is displayed in %1:
%1 = F_SENDDP
%1 = F_RECVDP
The name or the DP_DP_ID (identifier) of the F_DP communication relationship is displayed in %2.
The detected cause of the error is displayed in %3.
%3 = SN: An error has been detected in the message sequence.
%3 = CRC: A CRC error has been detected.
%3 = TO: The parameterized communication timeout was exceeded.
All values stated for %3 can also be displayed in combination according to the fault profile.
Reaction: Alarm display.
1. F_SENDDP/F_RECVDP: system variable $A_FSDP/FRDP_ERROR = TRUE
2. F_SENDDP/F_RECVDP: system variable $A_FSDP/FRDP_DIAG <> 0
3. F_RECVDP: system variable $A_FRDP_ACK_REQ = TRUE
4. F_RECVDP: Output of the substitute values defined in system variable $A_FRDP_SUBS
Remedy: Check the PROFIBUS communication and the communication partner
User acknowledgment via DB18.FRDP_ACK_REI or NC-RESET
Note to %3 = LS: Internal system error, can only be eliminated by PowerOn.
Program Con- Alarm display showing cause of alarm disappears. No further operator action necessary.
tinuation:
27352 F_DP: Communication error %1, error %2
Parameters: %1 = Error component (NCK/PLC)
%2 = Error code
Definitions: The communication between the NCK and PLC is no longer working.
Error code %1 specifies the cause:
%1 = PLC: The PLC is no longer executing the OB40 request.
Parameter %2 provides further information about the cause of the error:
%2 <> 0: PLC processing of the OB40 not finished.
Reaction: Mode group not ready.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Trigger a STOP D/E (settable via MD $MN_SPL_STOP_MODE) on all axes with safety functionality.
Remedy: Check whether the set F_DP cycle is too short.
Program Con- Switch control OFF - ON.
tinuation:
27353 F_DP: Current cycle time %1 [ms] > parameterized cycle time
Parameters: %1 = Current F_DP communication cycle time
Definitions: The current F_DP communication cycle time is greater than the value set via MD
$MN_SAFE_SRDP_IPO_TIME_RATIO. The parameterized communication cycle time is continually
exceeded on the PLC side.
Reaction: Mode group not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Trigger a STOP D/E (settable via MD $MN_SPL_STOP_MODE) on all axes with safety functionality.
Remedy: Adapt cycle time via MD $MN_SAFE_SRDP_IPO_TIME_RATIO.
At least the value displayed in parameter %1 has to be set.
The set cycle time affects the runtime load of the PLC module. This also has to be taken into consid-
eration when making the setting.
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
© Siemens AG, 2009. All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Overview of Alarms
NCK alarms
2-447