DIAX02 — DDS / DKS / DDC fault codes & diagnostics

EPROM checksum error

The SERCOS interface EPROM is faulty. The graphic shows only the bottom horizontal segment. '_' is a searchable transcription, not a normal numeral.

Invalid communications phase

The NC control attempted to switch into a currently invalid communications phase. All four vertical segments lit; horizontal segments unlit. The supplied graphic has no ordinary alphanumeric equivalent. code is null intentionally; use the display description or source page instead of inventing a character.

Error during phase progression

The NC control attempted an invalid communications phase progression. Upper-right and both left vertical segments lit; other segments unlit. The supplied graphic has no ordinary alphanumeric equivalent. code is null intentionally; use the display description or source page instead of inventing a character.

Error during phase regression

The NC control attempted an invalid communications phase regression. Lower-right and both left vertical segments lit; other segments unlit. The supplied graphic has no ordinary alphanumeric equivalent. code is null intentionally; use the display description or source page instead of inventing a character.

No progression to Phase 1

The NC control has not yet triggered progression from Phase 0 to Phase 1.

NC control unit has not yet triggered progression to Phase 2

The NC control has not yet triggered progression from Phase 1 to Phase 2.

Invalid parameters for Phase 3

Invalid parameters prevent progression to Communications Phase 3.

Invalid parameters for Phase 4

Invalid parameters prevent progression to Communications Phase 4. The original remedy paragraph repeats the Phase 2 list S-0-0021 despite this Phase 4 heading. No correction or parameter-changing remedy is supplied here.

Cyclical operation

The SERCOS ring is in cyclic operation and communication is established.

Hardware error

A general hardware error is indicated.

MST not yet received

No master synchronization telegram indicating Communications Phase 0 has been received.

Test mode

The SERCOS interface has switched to test mode.

Test mode

The SERCOS interface has switched to test mode.

Address 0 set

The SERCOS interface address is set to the invalid value 0.

Double MDT error

A double master-data-telegram error is detected from Communications Phase 3 onward.

Double MST error

A double master-synchronization-telegram error is detected from Communications Phase 3 onward.