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Siemens SINUMERIK Controller
Communication · Intermediate · 30-120 minutes
Siemens 840D 100653 - Network driver error! (DHCP/IP address correct?)
SIEMENS alarm 100653 indicates a network communication failure between the NCU and servo drives, typically caused by incorrect DHCP/IP configuration or physical network connectivity issues. This alarm fires when the PROFINET network driver cannot establish proper communication with servo components on the DRIVE-CLiQ or PROFINET network.
100653
Siemens 840D 100653 - Network driver error! (DHCP/IP address correct?)
Network driver error! (DHCP/IP address correct?)
Siemens SINUMERIK alarm 100653: Network driver error! (DHCP/IP address correct?). This alarm indicates an error condition in the NC program or control configuration that must be resolved before the operation can continue.
Root Cause Summary
SIEMENS alarm 100653 indicates a network communication failure between the NCU and servo drives, typically caused by incorrect DHCP/IP configuration or physical network connectivity issues. This alarm fires when the PROFINET network driver cannot establish proper communication with servo components on the DRIVE-CLiQ or PROFINET network.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Check PROFINET IP Configuration
Navigate to HMI → Commissioning → Hardware → PROFINET and verify IP addresses match machine data MD10200 (NCU_IP_ADDRESS) and MD10210 (SUBNET_MASK).
Use STARTER software to verify PROFINET topology matches actual hardware configuration
- 2
Verify DHCP Server Status
Check if DHCP server is running on NCU by examining MD10220 (DHCP_ENABLE) setting and verify network switch DHCP functionality.
Changing IP settings requires system restart and may affect all network components
- 3
Reset Network Configuration
Power cycle NCU and servo drives, then use HWCN (Hardware Configuration) to reassign IP addresses through PROFINET device configuration.
Call a technician if:
- ·NCU hardware replacement required
- ·Multiple servo drives showing communication failure
- ·STARTER software configuration corruption
Prevention
- Regular PROFINET cable inspection and strain relief maintenance
- Periodic backup of STARTER hardware configuration
- Monitor network switch temperature and ventilation
Common Mistakes
- Mixing standard Ethernet cables with PROFINET cables
- Changing IP addresses without updating all related MD parameters
- Powering system during PROFINET cable replacement
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