SST SST-ASI-SLC, Руководство пользователя

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Theory of Operation
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4.4.2 Replacing Slaves
Slaves can be replaced while the network is running. For example, if a slave
has failed and must be replaced, you can remove the failed slave and add a
brand new slave with matching I/O and ID. The new slave will be
automatically reprogrammed to the old slave’s address. You don’t have to do
any configuration on the slave.
To allow this automatic reprogramming, called Auto Address Programming,
you must have the Auto Address Programming bit (A) set in the G file. You
must be in AS-i Protected mode (see section 4.6) and have network and SLC
power ON when the slave is replaced.
4.4.3 Slave Parameters
Slave parameters allow you to change the way a device operates. They are
determined by the manufacturer’s specifications. Parameters are not
permanently stored in the slave.
You can set slave parameters in 3 ways: via the serial port, via the G file and
via the Output file.
The scanner initially uses the slave parameters stored in EEPROM. If the G
bit is set, the G file parameter entries override and update the EEPROM
entries. If the W bit is set, the Output file parameters override any other
entries. If neither G or W bits are set, the scanner continues to use the
EEPROM entries.
When the W bit is set, and you change parameters in the output file, the
parameters are written out to the slave in the next AS-i bus scan. Before any
logic depending on the change is executed, the user program should check the
Input file to ensure that parameter changes have been successfully echoed by
the slave.
When you configure with the serial port, the parameters are sent to the slave
as soon as a change is made. You must use the
Save command to update the
EEPROM.