9/29/09 A-7
124 Address 124 ($FC), Auto ID, will initiate an Auto-Identification of all 824s on
the net using a timing scheme based on each unit's address. The data received
will be the address byte from every device on the net delayed by 10mS times the
address; thus it will take a maximum of 1 second to receive the byte from unit
100.
<break> A short break will cancel the addressing lock initiated with the 125 address com-
mand, so that addressing may be changed.
<break>
<break>
Two breaks in a row will re-initialize the I/O and Printer tasks and the clear the
data and command buffers. It will also address all instruments (first command
should be an address).
<break>
<break>
<break>
Three breaks in a row will cause all 824s on the network to temporarily change
to 9600 baud to ensure that all devices on the net can be communicated with.
Note: The baud rate is not changed if in modem mode and connected. These
should be “Long” breaks (>50ms) to accommodate a unit set at 300 bps. Use the
S2283, n command to temporarily set the I/O baud rate where ‘n’ indicates the
new rate (see pg. B-30)
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