Specifications
Documentation Number 232BSS4-0812m    13 
&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 
B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com 
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 










