CHAPTER 5.0 Functional Overview
5-67
CDS7324 (FORMERLY LSF-0819)
Rev. A
INSTALLATION & USER’S MANUAL
5.14 Parameter Storage
5.14.1 Command Parameters
The saving and loading of parameters to the Non-Volatile Memory (NVM) of the drive is implemented using three
parameters, and a number of bit fields. The three relevant parameters are listed below: -
Field
Number
Type Name
10000 U08
nvm_load_parameters
10001 U08
nvm_save_parameters
10002 U08
load_default_parameters
Table 5 5.48 List of NVM related parameters
5.14.2 Storage Types
Each parameter is assigned a storage type that defines the area of NVM to which it is stored. The storage types
are: -
•
None: - parameter is not saved to NVM
•
Fac: - Factory types are used to hold parameters which are set during drive manufacture, not for
general user.
•
Ext:-
Extended types are used to hold baud rates, parity etc
•
Cus:
General / Customer types are placed in a general area used to hold parameters set by the user.
•
Enc:
Encoder types are stored in the encoder EEPROM and also in the ‘Cus’ storage area
When a load or save is performed, the user defines the storage type of the parameters to be saved or loaded, by
setting the appropriate bit(s) in the parameter.
5.14.3 Data Group
Each parameter is assigned to a particular data group. The two groups are: -
•
App : Application profile parameters
•
Com :- Communication parameters
When a load or save is performed, the user defines the data group of the parameters to be saved or loaded, by
setting the appropriate bit(s) in the parameter. The bit mask for selecting the appropriate storage type, and data
group is shown below :-
7 6 5 4 3 2 1 0
Storage Types
Data Groups
Communication Parameters
Application Parameters
Factory
Extended
General / Customer
Figure 5.12 : Bit Masks for Storage type and data group
