wifi sensor data logger, pc based data acquisition system

System Feature

• Industrial NXP 32-bit ARM MCU
• Double watchdog to ensure stability
• Dual digital filters for anti-noise
• Stable reconnection strategy for data transmit
• Synchronize clock with multiple way, Sms, NTP, CwtIO Server
• Configurable action schedule(second, minute, day, week, month)
• Support Interlock programming, Event trigger
• Easy used GUI configure software for setting up to 100 parameters
• Optional inside lithium battery for power lost alarm and keep 8-20 hours working

DI feature

• Trigger dry contact(NO or NC)

DO(T) feature

• Relay drivable output(drive voltage=power supply voltage, Drive current≤500mA)
• Remote or local event activate DO on/off/pulse
• Remember status when power lost

DO(K) feature

• Relay NO contact output(load: 2A / 125VAC,220VDC)
• Remote or local event activate DO on/off/pulse
• Status memory function for power lost

AI feature

• 4-20mA (option: 0-5V) in, Sampling frequency: 33Hz, 10-bit precision)
• Convert 4-20mA(0-5V) to physical value
• Can set parameters for value processing, alarm, data transmission
• Signal lost alarm

SMS feature

• Preset 10 phone numbers (support distribute authority to receive sms)
• Sms alarm when any IO channel triggered or out of preset normal range
• All alarm and recover sms text can be edited
• Query any IO channel’s status or value via sms command
• On/off/pulse output by sending sms
• Configurable schedule for sms report IO channel's status or value
• Remote setting via sms commands
• Can query SIM card balance, sms forward
• Support power lost sms alarm and recover sms(works with inside battery)

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)
• Automatically Upload data when alarm or according to schedule
• Communication protocol: Modbus TCP,http post, Cwt_IO(two-way communication)
• Transfer RS485 or RS232 Data to wireless network

Modbus feature

• Polling salve over RS485 with modbus rtu protocol
• Can be a I O module to be read/write by modbus master
• As modbus to gprs/3g gateway