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ETM9120 9140 Configuration Tool Userguide201406RV001
Low Power Mode (LPM) Example/Description
[Setup Information]
15:24:21.32 :
ETM9140 SYSTEM START
15:24:27.49 :
SUPPL VOLT:14.72V
15:24:28.57 :
ETM Matteknik AB 71224 9140 SW2.0.1.15 20140218 CT0600 Escape Pressed >
15:24:31.19 :
ETSWT? 1,PTL:1,1 2,PTL:2,2 3,PTL:2,2 4,PTL:5,5 5,PTL:10,10 OK
15:24:38.78 :
et&sr
OK
SW RESET:Cmd
and Min Awake Time in Main Init Tab set to 4 Minutes
[First Run]
15:24:43.01 :
ETM9140 SYSTEM START
15:24:49.19 :
SUPPL VOLT:14.80V
15:24:56.02 :
MS:^SYSSTART
15:25:04.04 :
SIM READY
15:25:07.02 :
Registered, home network
15:25:08.05 :
Net Provider:"505 01",2
15:25:09.03 :
Signal Quality:-97dBm(8)"Weak"
15:25:13.40 :
SMS Message Service OK
15:25:14.18 :
SIM:SMS Central no:+61418706700
15:25:17.23 :
SUPPL VOLT:14.58V ETM9140:>
15:25:18.70 :
Modem Init:at+cgdcont=1,"IP","telstra.internet"
15:25:19.32 :
Init OK Connect:atd*99***1# ISP Connect
15:25:25.32 :
PAP Login OK Waiting for IP-Context
15:25:28.67 :
Local IP Address:10.102.65.178
15:25:29.26 :
MSG:INTERNET CONNECT Connecting RIP:220.245.206.138:18000 LP:2800 MSG:SOCKET OPEN[!]
15:25:53.26 :
MSG:SOCKET CLOSED
15:26:05.16 :
Connecting RIP:220.245.206.138:18000 LP:2800 MSG:SOCKET OPEN[!]
15:26:26.26 :
MSG:SOCKET CLOSED Connecting RIP:220.245.206.138:18000 LP:2150 MSG:SOCKET OPEN[!]
15:26:30.76 :
MSG:SOCKET CLOSED
15:28:05.32 :
Connecting RIP:220.245.206.138:18000 LP:2800
15:28:06.03 :
MSG:SOCKET OPEN[!]
15:28:28.27 :
MSG:SOCKET CLOSED Connecting RIP:220.245.206.138:18000 LP:2150 MSG:SOCKET OPEN[!]
15:28:33.28 :
MSG:SOCKET CLOSED
15:28:50.80 :
LPM:ON
15:34:11.32 :
LPM:OFF SUPPL VOLT:14.97V
15:34:18.57 :
MS:^SYSSTART
15:34:26.57 :
SIM READY
15:34:29.58 :
Registered, home network
15:34:30.60 :
Net Provider:"505 01",2
15:34:31.58 :
Signal Quality:-95dBm(9)"Weak"
15:34:35.97 :
SMS Message Service OK
15:34:36.70 :
SIM:SMS Central no:+61418706700
15:34:39.80 :
SUPPL VOLT:14.50V ETM9140:>
15:34:40.99 :
Modem Init:at+cgdcont=1,"IP","telstra.internet"
15:34:41.58 :
Init OK Connect:atd*99***1# ISP Connect
TS:15:28:50.80 - LPM:ON (15:24:43.01 Start and 15:28:50.80 LPM ON = approx. 4 Minutes awake period)
TS:15:34:11.32 - LPM:OFF (15:28:50.80 LPM ON and 15:34:11.32 LPM OFF = approx. 6 Minutes)
... therefore we have a 10 minute sleeping period timer (SWT5) with a 4 minute period (set as Min Awake
Time, in the Main Init Tab) within the sleeping period where the modem is awake.
The wireless modem sleep mode functionality works on a sliding window and so the ‘sleeping period’ defines
the (approximate) maximum time that the wireless modem waits between sleep interrupts and the ‘Max
awake time’ is the (approximate) timeframe within that defined ‘sleeping period’ that the wireless modem can
send the data (be awake).
There is some variation possible within the wireless modem so that while you set a ‘Max awake time’ of 2
minutes it is possible that the unit will stay awake longer (up to 1 minute) because the wireless modem did
not finish all the required tasks within the allocated timeframe.
This will be more apparent the more you have chosen to send because each individual send will take a finite
amount of time and if, for example, you set an awake time that is too short for the sending of #21, #22, #5
and #4 data the wireless modem will wait for the next internal timer interrupt and if the ‘Max awake time’ has
