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 master device needs to confirm the AKD 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.
General Information
|
Type |
R/O Parameter |
|
Units |
None |
|
Range |
N/A |
|
Default Value |
N/A |
|
Data Type |
Integer |
|
Start Version |
M_01-04-12-000 |
Variants Supported
| Variant | Supported |
|---|---|
| AKD Base | Yes |
| AKD with Position Indexer | Yes |
| AKD EtherCAT | Yes |
| AKD CANopen | Yes |
| AKD BASIC | Yes |
| AKD SynqNet | Yes* |
| AKD EtherNet/IP | Yes |
| AKD PROFINET | Yes |
| AKD Sercos® III | Yes |
| AKD-N | Yes |
| AKD-C | Yes |
*In SynqNet, a parameter may be available in the firmware but have no effect on the system. See SynqNet Supported Parameters.
Fieldbus Information
If your drive type is listed as supported but no index, address, or instance number is listed, then this parameter is accessible through WorkBench, but not over your fieldbus type.
| Index/Subindex | Object Start Version |
|---|---|
| 3895h/0 | M_01-04-12-000 |
| Fieldbus | Parameter | Address | Attributes | Signed? |
|---|---|---|---|---|
|
PROFINET |
DRV.NVCHECK_32 | 2521 | DWord | No |
| Sercos® III | 8 Octets |
| Instance | Data Size | Data Type |
|---|---|---|
| 522 | 8 Byte | Integer |
| Register Address | Is 64 bit? | Attributes | Signed? | Object Start Version |
|---|---|---|---|---|
|
1042 |
Yes | low 32 bit word | No | M_01-04-12-000 |
