WiFi temperature data logger with free web cloud server
System Feature
- Cortex M3 32-bit ARM
- Reliable performance with built-in double watchdog, 24×7 operation
- Support signal fileter
- Stable reconnection strategy for data transmit
- Update RTC automatically or manually, clock source support Sms, NTP, CwtIO Server
- Automatically execute preset task by 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 lithium battery for power lost alarm and keep 8-20 hours working
DI feature
- Monitor 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
- Remember status when power lost
DO(K) feature
- Relay output(NO, contact load: 2A / 125VAC,220VDC)
- Remote or local event activate DO on/off/pulse
- 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
- Can set parameters for value processing, alarm, data transmission
- Signal lost alarm
SMS feature
- Support 10 cell phone numbers for alarm and control
- 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
- Configurable schedule for sms report IO channel's status or value
- Remote update parameters by sms
- Sms remind for sim card overdue
- 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
- Communicate with server by optional Cwt_IO, Modbus TCP, http post protocol
- Can forward data between wireless network with RS485 or RS232
Modbus feature
- polling salve over RS485 with modbus rtu protocol
- Can be a I O module to be read/write by modbus master
- Run Modbus RTU or TCP protocol over GPRS/3G
TI feature
- Can set high or lower level to alarm, data log via wireless network
- Fahrenheit or centigrade units for temperature
- Detect probe connect or disconnect to alarm
