Control Unit IV Reference Manual Troubleshooting
529-0004 Ver.3 6-21
Backup response error
This message may appear in a redundancy system when the backup unit and the master
unit respond differently to the same command.
See sections 6.4.5 to 6.4.7 to troubleshoot redundancy system problems. Refer to
Chapter 3 for information on how to set up a redundancy system.
Bad command
This message appears when a command is entered incorrectly. The commands must be
entered exactly as shown in the manual.
Refer to Chapters 3 and 4 for information on how to use each command.
Checksum error
This message appears when the subscriber status upload has failed and is usually due to
corrupt data or a communication problem.
See section 6.5.1 to troubleshoot data upload problems. Refer to Chapter 5 for
information on how to upload files.
Could not write to location xxxxx Status RAM error
This message appears when the Control Unit is unable to record subscriber data in its
memory, usually due to a corrupt subscriber status table or a hardware problem with the
Control Unit’s memory.
See Chapter 5 to troubleshoot memory problems. For further assistance, contact
Electroline’s technical support department.
Group out of range
This message appears when the group number of a command exceeds the Control Unit’s
capacity.
See section 6.5.2 to troubleshoot tap commands. Refer to Chapter 4 for information on
how to use each command with its parameters.
Invalid date
This message appears when the Control Unit’s real-time clock has lost its settings.
See section 6.6 to troubleshoot setup errors. Refer to Chapter 5 for battery replacement
instructions. Refer to Chapter 3 for instruction on how to set the unit’s date.
Invalid format
This message appears when the upload command has failed and is usually due to
problems with the data file.
See section 6.5.1 to troubleshoot upload problems. Refer to Chapter 5 for information on
how to upload files.
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