B&B Electronics 232BSS4 - Manual User Manual
Page 17
Documentation Number 232BSS4-0812m
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&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
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commands and the Master can initiate the next communications
sequence.
Example:
For a binary transfer from the Master to the device on Port A that
will take less than one second to complete
Send Select Port A Command: {Char1}{Char2}{Char3}”A”
Send Ignore Commands Command:
{Char1}{Char2}{Char3}”T””5”
Send the Binary File
Wait for the timeout period
Repeat for the next file/port
Method2 – Ignore Commands Using DTR
The second method of ignoring command sequences is to set the
232BSS4 to ignore commands if DTR is low from the Master device.
This option is enabled through the setup software. This method is useful
if the length of the binary file transfers are not known. The user would
first raise DTR on the Master device, then send the command to connect
it to the Slave port(s) that are to receive the data. Once the command is
sent, the Master device would then lower DTR and transmit the data.
The 232BSS4 would ignore command sequences and pass them through
to any connected ports until DTR was raised.
Example:
For a binary transfer from the Master to the device on Port A
Raise DTR on the Master Device
Send Select Port A Command: {Char1}{Char2}{Char3}”A”
Lower DTR on the Master Device
Send the Binary File
Repeat for the next file/port