3.1.5
”
Modem commands” group for RF-subsystem diagnostics
This group of commands comprises commands for setting of radio-frequency sub-system of the module. These
commands are used primarily for the initial setting of the module in factory. There are following commands:
mr
receiving mode switch-on (diagnostics)
mt test
testing broadcasting switch-on (set-up and diagnostics)
ms
internal status of RF-modem (diagnostics)
mi
dump of modem internal registers (diagnostics)
mfreq
frequency constant setting (frequency setting)
sfreq
setting of frequency constant by analyzer (frequency setting)
cfreq
frequency constant correction (frequency tunnig)
These commands are intended only for module diagnostics and initial adjustment of the nominal frequency during
the manufacturing process and outgoing inspection in factory.
Manufacturer strongly recommends not to use these commands during common operation. Using of
these commands can cause inoperability of the device.
3.1.6
Commands for setting of watermeter reading
The module is equipped with RF receiver for 433 MHz band, that serves for receiving of data from Sensus iPERL
watermeters. In regular operation the receiver is periodically (with preset reading period) switched to receiving
mode for 45 second time interval (called ”receiving window”), when BUP radio-messages from all watermeters in
radio-reach are received. After closing of receiving window the receiver is switched off to save battery energy.
This group of commands serves for setting of reading data from Sensus iPERL watermeters. There are following
commands:
skey
setting of encryption key for decrypting of watermeter messages
recvwin
open 433 MHz receiving window for preset time interval
radar
show list of watermeters in module radio-reach (”RADAR” mode)
sid
[index]
[value]
setting of watermeter IDs for reading (reading list)
The command
”Sensus encryption key”
is used for setting of the encryption key for decryption of messages
from Sensus iPERL watermeter (if the messages are encrypted). The AES-128 encryption key of 16 bytes length
is entered by using of
”skey”
command, followed by the string of 16 bytes that can be entered in a decimal or
hexadecimal format same way as encryption key for Wireless M-Bus messages (see using of ”ekey” command in
paragraph
below).
By using of
”recvwin [time]”
command the 433 MHz modem can be switched to ”RADAR” mode for requested
interval. In this mode the modem receives messages from all watermeters in the reach and creates ”RADAR” table,
where each watermeter has only one row (regardless the number of received messages). Thus, this table practically
contains the list of all watermeters in the radio-reach of the module. Length of receiving window is set by [time]
parameter of the command. Example of switching of 433 MHz modem to the ”RADAR” mode for 60 seconds time
interval:
mon#
mon#recvwin 60
Receive window 60 sec
mon#Recv :
00 51 07 c8 0e b4 68 68 68 68 68 56 d3 2b
.Q....
Recv ID 130551476, Val 0, status 0, rssi -73
Recv :
01 70 07 c8 0e b3 77 d6 47 47 47 b1 4d cd
.p....w.GGG.M.
Recv ID 130551475, Val 0, status 0, rssi -63
Recv :
00 d1 07 c8 0e b1 97 97 97 97 97 ea f2 89
..............
Recv ID 130551473, Val 0, status 0, rssi -88
Recv :
. . .
WB169-430
10
