Code 201314: <location>Topology: Component must not be present
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical <location>Topology: Component must not be present 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
Message value: Component number: %1, Component class: %2, Connection number: %3 Drive object: All objects Reaction: NONE Acknowledge: NONE Cause: For a component, "de-activate and not present" is se t but this component is still in the topology. Alarm value (r2124, interpret hexadecimal): Byte 1: Component number Byte 2: Component class of the component Byte 3: Connection number Note: Component class and connection number are described in F01375. Remedy: - remove the corresponding component. - change the setting "de-activate and not present". Note: Under "Topology --> Topology view" the commissi oning software offers improved diagnostics capability (e.g. setpoint/actual value comparison). See also: p0105, p0125, p0145, p0155
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 201314 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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