Balluff - BVS CA-UB Technical Documentation
|
It is possible to save arbitrary user specific data on the hardware's non-volatile memory. The amount of possible entries depends on the length of the individual entries as well as the size of the devices non-volatile memory reserved for storing:
currently offer 512 bytes of user accessible non-volatile memory of which 12 bytes are needed to store header information leaving 500 bytes for user specific data.
One entry will currently consume: 1 + <length_of_name (up to 255 chars)> + 2 + <length_of_data (up to 65535 bytes)> + 1 (access mode) bytes as well as an optional: 1 + <length_of_password> bytes per entry if a password has been defined for this particular entry
It is possible to save either String or Binary data in the data property of each entry. When storing binary data please note, that this data internally will be stored in Base64 format thus the amount of memory required is 4/3 time the binary data size.
The UserData can be accessed and created using ImpactControlCenter (the device has to be closed). In the section "UserData"
you will find the entries and following methods:
"CreateUserDataEntry"
"DeleteUserDataEntry"
"WriteDataToHardware"
To create a user data entry, you have to
"CreateUserDataEntry"
"Entries"
click on the entry you want to adjust and modify the data fields. ENTER
key must be pressed."WriteDataToHardware"
. Please have a look at the "Output"
tab in the lower right section of the screen as shown in Figure 2, to see if the write process returned with no errors. If an error occurs a message box will pop up.If you e.g. want to use the UserData as dongle mechanism (with binary data), it is not suggested to use ImpactControlCenter. In this case you have to program the handling of the user data.