8508 Sercos run-up not possible

Description

Refer to Diagnostic class (standard): 3

Cause

Solution

At least one Sercos slave does not react on time after the phase change to phase 3.

Reset the Sercos slave and start Sercos phase-up again.

No telegrams were received in phase 0.

Cause

Solution

Wiring error detected (cable separated).

Verify and correct if necessary the wiring.

Non-Operating Sercos slave after the controller.

Verify the state and condition of the device and reset or replace if necessary.

ExtDiagMsg C_Time=20000

An error is detected during the parameter transfer for the configuration of the Sercos timing.

For example: One set ProducerCycleTime of a Sercos I/O device is not supported by the device.

Verify and correct if necessary the Sercos timing for the device.

ExtDiagMsg C_SP3-2000B

At least one Sercos slave does not react on time after the phase change to phase 3.

Reset the Sercos slave and start Sercos phase-up again.

ExtDiagMsg C_SP3-20037

For at least one Sercos slave, an error is detected during synchronization command execution.

  • Reset the Sercos slave and start Sercos phase-up again.

  • Verify and correct if necessary the Sercos device.

ExtDiagMsg C_SP4 =20028

The number of configured additional real-time parameters is exceeded.

Verify and correct if necessary the parameters AdditionalIDNListMDT and AdditionalIDNListAT.

ExtDiagMsg ReconfSercAddr

Automatic distribution of unique Sercos addresses to the devices not using IdentificationMode SercosAddress was not successful. The Sercos phase-up is aborted.

Refer to 8042 Sercos phase switched.

ExtDiagMsg Wrong Topology

Using IdentificationMode TopologyAddress /2 the Sercos bus can only phase-up in bus-topology 'Line' on port 1 or in bus-topology 'Ring'.

Verify and modify if necessary the Identification Mode if using an unsupported topology.

ExtDiagMsg C_TGet=1 - Sercos run-up not possible

Timeout while reading all parameters necessary for timing and telegram calculation from all Sercos slaves.

  • Reset the Sercos slave and start Sercos phase-up again.

  • Verify and correct if necessary the Sercos devices.