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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 101648 - Transfer of the control right is disabled via BI p806.
Alarm 101648 indicates that the transfer of control rights between HMI devices or control panels is currently blocked due to the state of binector input p806. This is typically a configuration or operational status message related to multi-panel or remote operation setups where control authority needs to be transferred between operator stations.
101648
Siemens 840D 101648 - Transfer of the control right is disabled via BI p806.
Transfer of the control right is disabled via BI p806.
Siemens SINUMERIK operator message 101648: Transfer of the control right is disabled via BI p806. This is an informational message from the SINUMERIK control indicating a system status or operation result that may require operator action.
Root Cause Summary
Alarm 101648 indicates that the transfer of control rights between HMI devices or control panels is currently blocked due to the state of binector input p806. This is typically a configuration or operational status message related to multi-panel or remote operation setups where control authority needs to be transferred between operator stations.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Access the PLC diagnostics screen and navigate to the binector input status display to verify the current state of BI p806.
- 2
Check the physical wiring and connections to the BI p806 input terminal. Verify 24VDC signal presence with a multimeter if input should be active.
Ensure proper lockout/tagout procedures before checking any electrical connections.
- 3
Review the PLC program logic controlling p806 to ensure the output driving this input is functioning correctly and not being blocked by interlocks.
- 4
If the signal is correct but alarm persists, perform a power cycle of the NCU after verifying all connections are secure.
Save all active programs and coordinate machine downtime before power cycling.
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Always verify with your machine manual or a certified technician before performing service procedures.