DRV.NVCHECK

Description

DRV.NVCHECK returns a checksum of all the drives NV parameters. This parameter can be used to detect changes in parameters.

In some applications a controller may need to confirm the AKD2G drive contains an expected set of drive parameters. Reading and checking all the drive parameters individually is viable but this would be a long process involving many reads over the network. DRV.NVCHECK is a checksum on all the NV parameters and this parameter can be read in a single transaction. DRV.NVCHECK will return the same number if all the drive parameters match. If any of the drive parameters are changed then DRV.NVCHECK will return a different value.

Versions

Action	Version	Notes
Implemented	02-00-00-000

General Information

Type	Read Only
Units	None
Range	N/A
Default Value	N/A
Data Type	Integer
Stored in Non Volatile Memory	No

Variants Supported

All variants are supported.

Fieldbus Information

Fieldbus A Fieldbus is an industrial network system for real-time distributed control (e.g. CAN or Profibus). It is a way of connecting instruments in a plant design	Parameter	Index	Sub-Index	Data Type	Float Scale	Units	Access	PDO PDO is a type of protocol frame used in some fieldbuses. A PDO contains one or more object dictionary entries, which define the application data transferred between devices. Mappable
EtherCAT ***EtherCAT is an open, high-performance Ethernet-based fieldbus system. The development goal of EtherCAT was to apply Ethernet to automation applications which require short data update times (also called cycle times) with low communication jitter (for synchronization purposes) and low hardware costs COE and CANopen	DRV.NVCHECK	0x3000	0x3	UDINT	-	-	RO	False