Worth Data TriCoder t53 User Manual page 74

Host Response Accepted causes the TriCoder to act upon data received
from the host. Data received from the host can cause the TriCoder to beep,
display data or output a voice message. These are the controls for this
protocol:
Data from Host
Ctrl G ("BEL" - ASCII 7)
Ctrl R ("DC2" - ASCII 18)
nnDC4
nnENQ
xxxxxxxxxxCR
Selecting Host Response Accepted allows the TriCoder and host to operate
interactively with prompts and error messages from the host. Host
Response Accepted works with the other Protocol settings of None, ACK
/ NAK, and both Polling settings.
If your TriCoder is connected between a dumb terminal and host, select
Host Response Ignored to prevent data intended for the Terminal from
causing continual beeping on the TriCoder.
There are restrictions on the use of Host Response Accepted:
1. To prevent conflict between TriCoder ID characters (used to identify
individual TriCoders for polling) and data characters, the displayable
data characters are limited to ASCII 32 - 95. In other words, no lower
case characters are allowed. TriCoder ID characters must be ASCII 96-
127 only.
2. A displayable prompt must be terminated by a CR (carriage return)
unless terminated by one of the other controls - BEL, DC2, nnDC4 or
nnENQ. A prompt can also be a single character of CR, BEL, DC2,
nnDC4 or nnENQ.
3. With Host Response Accepted, before data can be entered on the
TriCoder, a valid prompt must have been received from the host. In
order to keep from missing a message from the host, the TriCoder locks
out keyboard or scanner input until it receives the prompt from the
host. While the TriCoder is waiting for the host prompt it displays:
If you want to enter data without receiving the expected prompt from
the host, press the CLEAR key.
Host Response Ignored tells the TriCoder to ignore all data received from
Response by TriCoder
one short beep
two long beeps
-nn is the two-digit voice message
-DC4 is ASCII 20
-ENQ is ASCII 05, used to send a voice
message without data entry as the next step.
-xxxxxxxxx is variable-length data for display
as a prompt on the TriCoder
-CR is ASCII 13 - used to terminate the data
prompt.
WAITING ON PMPT_
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