Filter
Top Products
22
ICC
9. Parameter Numbering
Inspection of the Toshiba ASD user’s manual reveals that the ASD’s parameters are
organized as hexadecimal numbers ranging from F000 to FFFF. These parameters
are made accessible to the interface board as “registers”, and are numerically
remapped to present a more natural interface to the communications user. There
are 1500 total registers available via the interface board, and their mappings are as
shown in Table 1.
Table 1: ASD Parameter-to-Register Mapping
Hexadecimal ASD
Parameter Numbers…
…Map to Decimal Register
Numbers
F000 - F999 1 - 1000
FA00 - FA99 1001 - 1100
FB00 - FB99 1101 - 1200
FC00 - FC99 1201 - 1300
FD00 - FD99 1301 - 1400
FE00 - FE99 1401 - 1500
This mapping is easier to understand if one just uses the interface's web page as a
guide (refer to Figure 6 and section 10.4.4). The "parameter” numbers (ASD
references) and "register” numbers (network references) for all available parameters
are shown in the first two columns. Commanding the drive over the network
therefore entails writing to registers 1007 (option board command 1) and 1008
(option board frequency command), which correspond to ASD parameters FA06 and
FA07, respectively.
Figure 6: Web Page Register Assignment Reference