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