GPRS WiFi web based water level, fuel level data logger

System Feature

• Industrial NXP 32-bit ARM MCU
• Double watchdog to ensure stability
• Support signal fileter
• Support automatic network reconnection and data re-send
• Synchronize clock with multiple way, Sms, NTP, CwtIO Server
• Can set multiple timers(second, minute, day, week, month) to execute actions, e.g. output, upload data, change setting
• Can automatically execute tasks according to preset Events
• Provide console utility for visual programming over 100 parameters
• Optional exterior rechargable battery for 8-20 hours working when power lost

DI feature

• Monitor dry contact(NO or NC)

DO(T) feature

• Open-collector output(drive voltage=power supply voltage, Drive current≤500mA)
• DO can be activated by remote or local schedule
• Remain down status when power lost

DO(K) feature

• Relay NO contact output(load: 2A / 125VAC,220VDC)
• on/off/pulse DO by remote control or local event
• Remain down status when power lost

AI feature

• 4-20mA (option: 0-5V) in, Sampling frequency: 33Hz, 10-bit precision)
• Convert signal to actual measure value,support adjustment
• Support offset and gain, alarm parameters, upload data setting
• 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
• Editable alarm and recover sms with time stamp
• Query any IO channel’s status or value via sms command
• On/off/pulse output by sending sms
• Sms report any IO channel’s status or value on schedule
• Remote setting via sms commands
• Can query SIM card balance, sms forward
• Sms alar for power lost and recover

Wireless network communication

• With 2g, 3g, 4g, Wi-Fi version
• Communicate with up to 4 servers(IP or domain) by TCP/IP
• Automatically Upload data when alarm or according to schedule
• Communicate with server by optional Cwt_IO, Modbus TCP, http post protocol
• Can forward data between wireless network with RS485 or RS232

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

TI feature

• Configurable parameters for alarm (high or lower), record, data communication, adjustment
• Can switch Fahrenheit or centigrade
• Detect probe connect or disconnect to alarm