Code 8098: Invalid combination of options (%1)
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical Invalid combination of options (%1) alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Parameters: %1 = Bit mask of options Definitions: The following restrictions apply to this module for the combination of options: The option "Two-channel" and the options "Exter nal language", "Nibbling", "Neural quadrant error compensation" and "Measurement level 2" exclude one another! Bit0 (LSB): Nibbling Bit1: External language Bit2: Neural quadrant error compensation Bit3: Measurement level 2 Reaction: Mode group not ready. Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. NC Stop on alarm. Remedy: Set the options accordingly. Program Continuation: Switch control OFF - ON.
Source: SINUMERIK 840D sl / 840Di sl / SINAMICS S120 Diagnostics Manual (DAsl, 03/2009)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Siemens SINUMERIK 840D CNC Alarms
Siemens controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 8098 on the SINUMERIK 840D CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Siemens's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 4014 Siemens SINUMERIK 840D CNC codes.
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