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Siemens SINUMERIK Controller
Communication · Intermediate · 30-120 minutes
Siemens 840D 100918 - Remote diagnostics: Error 08 -socket(device)-timeout
Alarm 100918 indicates a communication timeout during remote diagnostics connection via socket interface on the SINUMERIK 840D. This typically occurs when the control attempts to establish or maintain a remote diagnostics session but the network connection fails to respond within the expected timeframe. The error suggests network infrastructure problems, firewall blocking, or remote diagnostics service configuration issues.
100918
Siemens 840D 100918 - Remote diagnostics: Error 08 -socket(device)-timeout
Remote diagnostics: Error 08 -socket(device)-timeout
Siemens SINUMERIK alarm 100918: Remote diagnostics: Error 08 -socket(device)-timeout. 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
Alarm 100918 indicates a communication timeout during remote diagnostics connection via socket interface on the SINUMERIK 840D. This typically occurs when the control attempts to establish or maintain a remote diagnostics session but the network connection fails to respond within the expected timeframe. The error suggests network infrastructure problems, firewall blocking, or remote diagnostics service configuration issues.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Verify physical network cable connections at the NCU (X120/X130) and check link LEDs for active connection status.
- 2
From HMI, navigate to Commissioning > Network Configuration and verify IP address, subnet mask, gateway settings match your network infrastructure.
- 3
Perform ping test to remote diagnostics server IP address from the control using built-in network diagnostics or service mode.
Document original network settings before making any changes.
- 4
Check network switch/router for port errors, disconnect events, or VLAN configuration issues that may affect communication to the control.
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Always verify with your machine manual or a certified technician before performing service procedures.