Appendix C Hayes AT Command Reference
RFI-9256 Radio Modem User Manual
Page 91 of 109
C.1.16
“AT&W” Store Active Profile
The
AT&W
command is used to store the current profile in non-volatile memory.
The two options when storing the active profile are shown in Table 32.
Command
Description
AT&W
Saves all radio configuration data to non-volatile memory.
AT&W1
Submits the serial port configuration. Serial port configuration changes are not made active
until this command is executed.
Table 32: AT&V view profile commands
C.2 S-Register Commands
C.2.1
“ATS0” Rings Before Answer
Sets the number of rings that are output before the RFI-9256 automatically answers a call.
ATS0=3<CR>
: Causes 3
RING
messages to be output before answering.
C.2.2
“ATS2” Escape Character
S-register 2 contains the ASCII values of the character that forms the escape sequence. The default value for
this register is the ‘+’ character, with an ASCII value of 43. The radio will recognise three
+
characters
(
+++
) as the escape sequence with the escape guard time delay before and after the sequence.
ATS2=36<CR>
: Recognises three dollar characters “
$$$
” as the escape sequence.
ATS2=45<CR>
: Recognises three minus characters “
---
“ as the escape sequence.
C.2.3
“ATS7” Wait for Carrier
S-register 7 contains a value, in seconds, equivalent to the length of time the radio will wait for a carrier
signal after dialling. If a carrier is not detected within the time specified in this register, the radio will hang
up and return a
NO CARRIER
message.
ATS7=20<CR>
: Wait for up to 20 seconds for a connection to be established before returning
NO
CARRIER
.
C.2.4
“ATS12” Escape Sequence Guard Time
The escape sequence guard time is the time delay required immediately before and after entering an escape
sequence.