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Curtis 1356/1356P CAN Expansion Module Manual,
Rev. A
bytes in proper descending order). Using the ASCII hex values for each character,
we get 0x70 (“p”), 0x75 (“u”), 0x6B (“k”), and 0x62 (“b”) for the final resultant
hex 4 byte number of 0x70756B62.
Restore Default Parameters
The Restore Default Parameters Object allows the 1356 /1356P to restore all
flash backed-up SDO objects to their Factory settings (hard-coded in software),
Back-up settings (stored in Back-up parameter block in flash), or Normal (stored
in Normal parameter block in flash). This object can also be used to restore
(reset) the hour meter value.
Writing a special text string to this object will initiate a restore to Factory,
Backup, or Normal settings for all SDO objects stored in flash. Once this object is
written to, the next KSI cycle will cause the system settings to be loaded from the
new desired location and put into the working RAM locations (Shadow RAM).
A Restore the Back-Up Settings command (“load”) will load the data
values from the Backup parameter block, place them in RAM, and overwrite
the Normal parameter block with them. Whatever changes were made to the
Normal parameter block will be lost. The Restore Default Parameters function
should be set to 0x02 (Restore Normal Settings) so that the 1356 /1356P will
restore from the Normal parameter block on the next reset or power cycle.
Table 2c Restore Default Parameters Object
Restore Default
Write
Data
Parameters Function
String
Read Back Description
Restore Factory Settings
“fact”
0
Restore all parameter values
0x74636166
from built-in defaults. These
are hard-coded in the software.
Restore the Back-Up
“load”
1
Restore all parameter values
Settings
0x64616F6C
from the Backup parameter
block. “load” is used to comply
with CANopen spec DS301.
Restore Normal Settings
“norm”
2
Restore all parameter values
0x6D726F6E
from the Normal parameter block.
Preset the Hour Meter
“hour”
N/A
Preset the hour meter to the
0x72756F68
value loaded into the parameter
Preset Hour (0x3062).
On reception of the correct string, the 1356 /1356P will set a Restore flag
and confirm the SDO transmission. If a wrong string or unsupported command
is written, the 1356 /1356P will not set the Restore flag and responds with an
Abort SDO.
The hour meter has a special function to reset it. Writing the string “hour”
to this index will cause the 1356 /1356P to preset the hour meter to the value
saved in the Preset Hour parameter (0x3062). Note that only the hours can be
set to a programmed value; the minutes always will be reset to 0.
5 — SDO: Communication Profile Objects
Summary of Contents for 1356
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