TYPHOON800 rfsolutions.ltd, TYPHOON800 Datasheet - Page 9

• Manufacturer Part Number: TYPHOON800
• Description: Rs232/485 Radio Modem
• Manufacturer: rfsolutions.ltd

DS510-1 Aug 2008
3.1.1 Standard Commands Description
3
‘ATO’
The RF modem is able to operate in several different modes which can be configured by setting the
values of the appropriate special registers using AT commands.
The Hayes or 'AT' commands comply with the Hayes protocol used in PSTN modem standards. This
‘AT’ protocol or Hayes mode is used to program the modem parameters, based on the following
principle:
Note 1: The delay between 2 characters of the same command must be less than 10 seconds
The only exception to this data-framing rule is the command to enter the enter AT-mode. In this case,
only the escape code (‘+++’ by default) must be typed and followed by a silent time at least equal to the
time out. <AT> and <CR> shall not be used.
Note 2: Register numbers and values used in the AT commands are in decimal format
Note 3: Generally a successful AT command will return 0 or OK and an unsuccessful command will
return ERROR or E
'+++'
'ATSn?'
'ATSn=m’
'AT/S’
'AT/V’:
•
•
•
A
Hayes or ‘AT’ Mode
A data frame always begins with the 2 ASCII ’AT’ characters, standing for ‘ATtention’
Commands are coded over one or several characters and may include additional data
A command is always ended by a <CR> Carriage Return
T
Enter AT-mode
This command gives an instant access to the modem parameter set-up (Hayes or AT-
mode), whatever the actual operating mode in process might be. This command shall not
be started with AT, but by a silent time duration whose parameter entering is defined in
milliseconds in register S214.
Note: By activating the AT-mode, the modem inactivates radio reception
Exit AT-mode
This command activates the operating mode as stored into register S220
Display value of register ‘n’
The modem operating parameters are stored in ‘S’ classified registers. ‘S’ registers are
numbered from 0 to 512. Some parameters are standard for every Hayes type modems,
other are specific to the RF modem (see section 2.9 for register descriptions).
Operating parameters are stored in EEPROM memory and automatically set-up during
modem reset and modem turn on
Change value of register ‘n’ to ‘m’
Changed values of registers are automatically stored in the modem EEPROM memory
Display values of significant registers
All significant registers for the modem (radio configuration, serial configuration, operating
mode,) are sent to the serial link, ready to be displayed by software like Windows
HyperTerminal
Display values of the modem software version
Information concerning the version number and installation date is sent on the serial link
RS232/485 R
Command
©2008 Reg. No. 227 4001, ENGLAND
Additional command
ADIO
Operating Modes
M
ODEM
...
<CR>
Page 9
TYPHOON 800