Tunnel – ULP Configuration parameter: “ULP_”

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The “ULP_” configuration parameter is only related to MTX-Tunnel installed on the modem terminal modem. ULP means Ultra Low Power mode in which power consumption is only 10uA. In this mode, the modem remains on standby waiting for a configured alarm or a change in the level of digital input. Then all 2G/3G/4G tunnels and services are established and after a different configured time, it will switch off and return to ULP mode.

If your application needs low power consumption please read the following configuration parameters:

ULP_enabled

Description: This parameter allows to activate the ULP service (low power) in case the MTX model has it.

Possible values:

  • on, off
  • Default value: off

Additional notes:

  • In SMS mode (ULP_mode: sms) you must use the “ULP_sleepMode:minutes” configuration parameter.
  • It is not possible to set a time for the modem to wake up from the ULP mode; it is only possible to specify a time for it to sleep. This is because “ULP_sleepMode: date” needs a GPRS connection for time synchronization and it can only connect during normal wakeup mode.
  • Check Annexes for more information. Contact iotsupport@mtxm2m.com for more help
  • Check also parameters ALARM_ulpEnabled and ALARM_ulpMessage

ULP_sleepMode

Description:

ULP sleep mode:

  • “minutes” configuration value: MTXTunnel wakes up and connects to 2G/3G/4G enabling services (Serial tunnel, WebServer, Telnet…). MTX-Tunnel will remain active the time specified in ULP_secondsOn. Passed that time, MTX-Tunnel will go into ULP mode (~10uA), waking up again after X minutes specified in the parameter ULP_minutesOff.
  • “date” configuration value: MTXTunnel wakes up and connects to 2G/3G/4G enabling services (Serial tunnel, WebServer, Telnet…). MTX-Tunnel will remain active the time specified in ULP_secondsOn. Passed that time, MTX-Tunnel will go into ULP mode (~10uA), waking up again at the time specified in the parameters ULP_time1, ULP_time2, … ULP_time10.

Possible values:

  • minutes, date
  • Default value: minutes

Additional notes:

  • If you are going to use date mode you MUST synchronize the internal timing with the server timing using the MTX_TPServer parameter. The modem will connect with the server’s time and update its internal timing every time it wakes up. MTX-Tunnel uses UTC timing

ULP_minutesOff

Description: this parameter specifies the number of minutes during which the modem is in ULP (Ultra Low Power). After this time, the modem switches to normal mode.

Possible values:

  • 0… 43200
  • Default value: 0

Additional notes:

  • Once the modem wakes up, it will remain on the time specified in ULP_secondsOn
  • If you select a value ULP_minutesOff=0 and the parameter ULP_sleepMode has the value “minutes,” the modem will only awake with a tamper input (digital input)

ULP_secondsOn

Description: this parameter specifies the number of seconds during which the modem is in ULP (Ultra Low Power). After this time, the modem will go back to sleep.

Possible values:

  • 0… 86400
  • Default value: 60

Additional notes:

  • Once the modem goes to sleep, it will remain that way the time specified in ULP_minutesOff

ULP_time1, ULP_time2… ULP_time10

Description: up to 10 different specified alarm times to wake up MTX-Tunnel from ULP mode (2uA) and activate a GPRS session. The GPRS session will be active during GPRS_timeout second time value.

Possible values:

  • DDHHMM (DD: day, HH hour in 24h format & MM (minutes)
  • Default value: none

Additional notes:

  • DD and HH values can be XX, meaning any value
  • Examples:
  • ULP_time1: 012200
    MTXTunnel wakes up (changes from ULP to normal mode) every 1st day of the month at 22:00)
  • ULP_time1: 011030
    ULP_time2: 151030
    MTX-Tunnel wakes up every 1st and 15th day of the month, at 10:30
  • ULP_time1: XX1800
    MTXTunnel wakes up every 1st day of the month, at 18:00
  • ULP_time1: XX0200
    ULP_time2: XX1400
    MTXTunnel wakes up from ULP to normal mode every day of the month, at 02.00 and 14.00
  • ULP_time1: XXXX00
    MTXTunnel wakes up from ULP mode, every day of the current month and every hour
  • Modem time uses UTC HOUR. Check differences with local time

ULP_smsExtended

Description: If disabled (value “off”) and the ULP mode is SMS (ULP_mode: sms), an SMS will be sent with the text specified in the MTX_IDClient parameter. If enabled (value “on”), the SMS will also contain extended telemetry as specified in the ULP_mode parameter.

Possible values:

  • on, off
  • Default value: on

Additional notes:

  • Sometimes you just need to send the “MTX_IDClient” value parameter and not the GPIOs values as this saves power
  • For example when the digital tamper input changes, the SMS text will not include any value, just the “Input change”

ULP_smsNumber1, ULP_smsNumber2, ULP_smsNumber3

Description: This parameter sets the telephone numbers to which SMSs containing the GPIO and ADC values will be sent when ULP mode is SMS: (ULP_mode: SMS). You can use up to 3 phone numbers.

Possible values:

  • National or international phone numbers are valid
  • Default value: none

ULP_rtc

Description: This parameter configures the way to wake up the MTX-65-ULP modem.

Timing alarm: MTX-Tunnel wakes up when alarm timing occurs. Internal RTC is used.

Interruption digital input (tamper): MTX-65-ULP modem wakes up when a special digital trigger input is
activated.

Possible values:

  • on, off
  • Default value: on

Additional notes:

  • Using MTX-65-ULP with the RTC disabled leaves only the digital input wakeup trigger which is the lowest power mode on MTX-Tunnel