TransCore 05531 User Manual
Commands
7-31
Reader response:
Done
If the reader is configured for software flow control (XON/XOFF), it stops transmit-
ting if it receives an XOFF character (host software command 13H). It does not
resume transmitting until it receives an XON character (host software command 11H).
If the reader is configured for hardware flow control (RTS/CTS, request to send/clear
to send), it stops transmission if it detects that the CTS line is no longer asserted. It
resumes transmission when this line is asserted again.
ting if it receives an XOFF character (host software command 13H). It does not
resume transmitting until it receives an XON character (host software command 11H).
If the reader is configured for hardware flow control (RTS/CTS, request to send/clear
to send), it stops transmission if it detects that the CTS line is no longer asserted. It
resumes transmission when this line is asserted again.
Note: TransCore recommends that XON/XOFF flow control be disabled while using
the ECP.
the ECP.
6160 Disable Buffer Control Mode (Factory Default)
Command 6160 is used to disable buffer control. Buffer control is an ECP option that
prevents unsolicited (asynchronous) reader transmissions. If buffer control is not
active, the reader transmits data to the host as soon as the data is acquired. The host
must acknowledge the data according to the ECP acknowledgment/negative
acknowledgment
prevents unsolicited (asynchronous) reader transmissions. If buffer control is not
active, the reader transmits data to the host as soon as the data is acquired. The host
must acknowledge the data according to the ECP acknowledgment/negative
acknowledgment
(ACK/NAK)
protocol. Refer to command 6161 for more information.
Reader message:
Done
6161 Enable Buffer Control Mode
Command 6161 is used to enable buffer control. Buffer control is an ECP option that
prevents asynchronous reader transmissions. When buffer control is enabled using
command 6161, the reader transmits only in response to command 06, transmit buffer
entry. The exception to this rule occurs on startup when the reader transmits its two-
line sign-on message asynchronously.
prevents asynchronous reader transmissions. When buffer control is enabled using
command 6161, the reader transmits only in response to command 06, transmit buffer
entry. The exception to this rule occurs on startup when the reader transmits its two-
line sign-on message asynchronously.
The following commands are used for buffer control:
Table 7-11 Flow Control Commands
Command
Flow Control Option
6140
Disable flow control
6141
Enable software flow control (factory default)
6142
Enable hardware flow control