Page
30
RS
‐
232/485
RF
Modem
Product
Manual
–
MAN0782
‐
02
EXAMPLE: Restore RF Modem Default Parameters using the Terminal tab:
Example: Both of the following examples change the RS-232/485 Modem’s destination address to
0x1A0D (6669d) and save the new address to non-volatile memory.
Method 1
(One line per command)
Issue AT Command
System Response
+++
OK<CR> (Enter into AT Command Mode)
ATRE<CR>
OK<CR> (Restore modem default parameter values)
ATWR<CR>
OK<CR> (Write new values to non-volatile memory)
ATCN<CR>
OK<CR> (Exit AT Command Mode)
Method 2
(Multiple commands on one line)
Issue AT Command
System Response
+++
OK<CR>
ATRE, WR, CN<CR>
OK<CR>
NOTE: Default parameter values of the RF Modem can also be restored by selecting the ‘Restore’
button located on the Modem Configuration tab.
Modem Configuration tab
While RS-232/485 RF Modems operate out-of-box without configuration, the ‘Modem
Configuration’ tab of the RadioSet software can be used to activate advanced functions. The
following example illustrates use of the most commonly used features of the Modem
Configuration tab.
EXAMPLE: Read & Restore Default Parameters using the Modem Configuration tab:
The following steps show how to read currently stored modem parameter values; then restore
the modem parameters to their factory-default states.
1. Open the RadioSet program:
2. Under the “PC Settings” tab, select the PC Serial Com Port from the dropdown list that will be
used to connect to the RF Modem.
3. Select a "Baud rate" to match the default RF data rate of the RF Modem. Use default values
for all other fields.
4. Select the “Modem Configuration” tab.
5
Select the “Read” button to read currently stored parameter values of the modem.
6. Select the “Restore” button to restore factory-default parameter values.
7. Select the “Write” button to save default values to non-volatile memory.
Binary Command Example
To Send Binary Commands:
Example: Use binary commands to change the RS232-485 Modem’s destination address to
0x1A0D and save the new address to non-volatile memory.
1. RT Command must be set to “1” in AT Command Mode to enable binary programming.
2. Assert CMD (Pin is driven high).
(Enter Binary Command Mode)
3.
Send
Bytes:
00
(Send
DT
(Destination Address) Command)
0D
(Least significant byte)
1A
(Most
significant
byte)
08
(Send
WR
(Write)
Command)
4. De-assert CMD (Pin is driven low).
(Exit Binary Command Mode)
Note:
is high when command is being executed. Hardware flow control must be disabled as
will hold off parameter bytes.