Code 380001: PROFIBUS/PROFINET: Startup error, reason %1 parameter %2 %3 %4.
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical PROFIBUS/PROFINET: Startup error, reason %1 parameter %2 %3 %4. 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 = Cause of the error %2 = Parameter 1 %3 = Parameter 2 %4 = Parameter 3 Drives alarms Definitions: An error occurred during startup of the PROFIBUS/PROFINET master. Overview: Cause of the error, Par 1, Par 2, Par 3: - 01 = DPM version, DPM version, DPA version, -- 02 = DPM ramp-up timeout, DPM actual value status, DPM setpoint value status, -- 03 = DPM ramp-up status, DPM actual value stat us, DPM setpoint value status, DPM error code - 04 = DPM ramp-up error, DPM actual value stat us, DPM setpoint value status, DPM error code - 05 = DPM-PLL sync error, --, --, -- 07 = Alarm queue too long, Actual number, Setpoint number, -- 08 = Unknown client, Client ID, --, -- 09 = Client version, Client ID, Client version, DPA version - 10 = Too many clients, Client number, max. number of clients, -- 11 = Log.basic address used several times; bus no.; slot no.; log.basic address -- 20 = Slave/device address used seve ral times, slave/device address -- 21 = Slave/device address un known, slave/device address, -- 22 = Erroneous configuration telegram, slave/device address, error code, -- 23 = OMI incompatible (data), drive version, CDA version, --, -- 24 = OMI incompatible (driver), drive version, CDA version, --, -- 25 = CPI initialization failed, error code, --, --, -- 26 = DMA not active - 27 = Reserved - 28 = Reserved - 29 = Reserved - The 1000s digit of the error cause = number of the affected bus Clients are the following components of the c ontrol system that use the PROFIBUS/PROFINET: Client ID = 1: PLC Client ID = 2: NCK Possible causes are: - Error in contents of SDB - Corruption of parts of the system program - Hardware defect on NC component Reaction: Channel not ready. NC Start disable in this channel. Interface signals are set. Alarm display. Remedy: Remedy for 1-11 1. Check the control project, check MD11240 $MN_PROFIBUS_SDB_NUMBER, and reload it when using a user-specific SDB. 2. If the error still occurs, back up data, and restar t the control with the standard values as per the asdelivered condition. 3. In case of correct ramp-up, reload the user data stage by stage. 4. If the error still occurs during ramp-up with stand ard values, reboot the system from the PC card or update the software. 5. If the error still occurs, replace the hardware. Remedy for 20-21 1. Check/correct the addresses of the connected slaves/devices. Remedy for 22 See SINAMICS warning 1903 for a descripti on of the meaning behind the error codes. 1. Control the SDB - Check the type and length of the message frame - Match slot assignment with P978 2. Evaluate the drive alarms/warnings Remedy for 23-24 1. Software replacement required Remedy for 25 1. Change the message frame type 2. Reduce the number of slots 3. Reduce the number of slaves/devices 4. Create a new SDB 5. Software must be replaced If the error has still not been able to be rectified afte r this procedure, send the error text to the control manufacturer. Program Continuation: Switch control OFF - ON. Drives alarms Diagnostics Manual (DAsl), 03/2009
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 380001 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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