machine to machine communication in iot, smart m2m gateway
System Feature
- Industrial NXP 32-bit ARM MCU
- Double watchdog to ensure stability
- With signal filtering mechanisms
- Network-reconnect and retransmission to ensure data
accurately transmit
- Automatically or manually update interior clock by sms or NTP
or server
- Configurable action schedule(second, minute, day, week,
month)
- Event-based linkage programming, e.g. alarm linkage output
- Provide console utility for visual programming over 100
parameters
- Optional inside battery that life is 8-20 hours, cellular
module Intelligent sleep when power lost
DI feature
- Trigger dry contact(NO or NC)
DO(T) feature
- Open-collector output(drive voltage=power supply voltage,
Drive current≤500mA)
- Remote or local event activate DO on/off/pulse
- Status memory function for power lost
DO(K) feature
- Relay NO output(load: 2A / 125VAC,220VDC)
- on/off/pulse DO by remote control or local event
- Remain down status when power lost
AI feature
- Accept 4-20mA (option: 0-5V), Sampling frequency: 33Hz,
10-bit precision)
- Convert signal to actual measure value,support adjustment
- Configurable parameters for signal acquisition, alarm, data
communication
- Signal lost alarm
SMS feature
- Support 10 cell phone numbers for alarm and control
- Send sms alarm when input is triggered or reach alarm level
- Customizable sms messages, like alarm, receove, report
- Remote get device status or value by sending sms command
- On/off/pulse output by sending sms
- Can set interval to report IO channel's status or value by
sms
- Sending sms command to update setting
- Can query SIM card balance, sms forward
- Sms alar for power lost and recover
Wireless network communication
- Option network: cellular(2g/3g/4g) or Wi-Fi
- TCP/IP connect at most 4 servers(support Static IP address or
domain)
- Support post or respond mode for data communication
- Communication protocol: Modbus TCP,http post, Cwt_IO(two-way
communication)
- Transfer RS485 or RS232 Data to wireless network
Modbus feature
- Can be modbus master read/write salve over RS485
- Can be a I O module to be read/write by modbus master
- As modbus to gprs/3g gateway
