Shanghai SIMCom Wireless Solutions Limited SIM7000A ユーザーズマニュアル
Smart Machine Smart Decision
SIM7000 _Hardware Design _V1.00
2017-05-23
than normal mode.
Flight mode
AT command “AT+CFUN=4” can be used to set the module to flight
mode without removing the power supply. In this mode, the RF part
of the module will not work, but the serial port and USB port are still
accessible. The power consumption in this mode is lower than normal
mode.
mode without removing the power supply. In this mode, the RF part
of the module will not work, but the serial port and USB port are still
accessible. The power consumption in this mode is lower than normal
mode.
PSM mode
Setting the timer of the software can be entered PSM mode. In this
mode, the module will be the least current consumption. Meanwhile,
all the output of the LDO and DCDC in the module will be closed
except the RTC power. And also all of the functions will be
unavailable except the RTC function. RTC timer can wake up the
module.
mode, the module will be the least current consumption. Meanwhile,
all the output of the LDO and DCDC in the module will be closed
except the RTC power. And also all of the functions will be
unavailable except the RTC function. RTC timer can wake up the
module.
Power off mode
Module will go into power off mode by sending the AT command
“AT+CPOWD” or pull down the PWRKEY pin, normally. In this
mode the power management unit shuts down the power supply, and
software is not active. The serial port and USB are is not accessible.
“AT+CPOWD” or pull down the PWRKEY pin, normally. In this
mode the power management unit shuts down the power supply, and
software is not active. The serial port and USB are is not accessible.
5.3.2
Sleep mode
In sleep mode, the current consumption of module will be reduced to the minimal level, and
module can still receive paging message and SMS.
Several hardware and software conditions must be satisfied together in order to let SIM7000 enter
sleep mode:
1. UART condition
2. USB condition
3. Software condition
Note: Before designing, pay attention to how to realize sleeping/waking function and refer to
Document [26] for more details.
module can still receive paging message and SMS.
Several hardware and software conditions must be satisfied together in order to let SIM7000 enter
sleep mode:
1. UART condition
2. USB condition
3. Software condition
Note: Before designing, pay attention to how to realize sleeping/waking function and refer to
Document [26] for more details.
5.3.3
Minimum functionality mode and Flight mode
Minimum functionality mode ceases a majority function of the module, thus minimizing the power
consumption. This mode is set by the AT command which provides a choice of the functionality
levels.
consumption. This mode is set by the AT command which provides a choice of the functionality
levels.
●
AT+CFUN=0: Minimum functionality
●
AT+CFUN=1: Full functionality (Default)
●
AT+CFUN=4: Flight mode
If SIM7000 has been set to minimum functionality mode, the RF function and SIM card function
will be closed. In this case, the serial port and USB are still accessible, but RF function and SIM
card will be unavailable.
If SIM7000 has been set to flight mode, the RF function will be closed. In this case, the serial port
and USB are still accessible, but RF function will be unavailable.
will be closed. In this case, the serial port and USB are still accessible, but RF function and SIM
card will be unavailable.
If SIM7000 has been set to flight mode, the RF function will be closed. In this case, the serial port
and USB are still accessible, but RF function will be unavailable.