0x1011 Restore default parameters

With this object the default values of parameters according to the communication profile, device profile, and application profile are restored.

By read access the CANopen device shall provide information about its capabilities to restore these values. Several parameter groups are distinguished:

• Sub-index 00_h contains the highest sub-index that is supported.
• Sub-index 01_h refers to all parameters that may be restored.
• Sub-index 02_h refers to communication related parameters (Index from 1000_h to 1FFF_h).
• Sub-index 03_h refers to application related parameters (Index from 6000_h to 9FFF_h).
• Sub-index from 04_h to 7F_h manufacturers may restore their individual choice of parameters.
• Sub-index from 80_h to FE_h are reserved for future use.

In order to avoid the restoring of default parameters by mistake, restoring shall be only executed when a specific signature is written to the appropriate sub-index. The signature that shall be written is "load":

Figure 57: Restore default write access signature

On reception of the correct signature in the appropriate sub-index the CANopen device shall restore the default parameters and then it shall confirm the SDO transmission (SDO download initiate response). If the restoring failed, the CANopen device shall respond with the SDO abort transfer service (abort code: 0606 0000_h). If a wrong signature is written, the CANopen device shall refuse to restore the defaults and shall respond with the SDO abort transfer service (abort code: 0800 002x_h).

The default values shall be set valid after the CANopen device is reset (NMT service reset node for sub-index from 01_h to 7F_h, NMT service reset communication for sub-index 02_h) or power cycled.

Figure 58: Restore procedure

On read access to the appropriate sub-index the CANopen device shall provide information about its default parameter restoring capability with the following format:

Figure 59: Restore default read access structure

Structure of restore read access

Bit	Value	Description
cmd	0b 1b	CANopen device does not restore default parameters CANopen device restores parameters

Name	Index:Sub	Type	Bit Size	Min Data	Max Data	Default Data	Unit	Access	PDO Mapping
restore all default parameters	0x1011:1	UDINT	32			0		readwrite