wifi data logger, wifi data acquisition data logger

System Feature

• Cortex M3 32-bit ARM
• Reliable performance with built-in double watchdog, 24×7 operation
• Dual digital filters for anti-noise
• Support automatic network reconnection and data re-send
• Synchronize clock with multiple way, Sms, NTP, CwtIO Server
• Automatically execute preset task by schedule(second, minute, day, week, month)
• Support Interlock programming, Event trigger
• Provide configure software, visual programming, over 100 parameters can be set
• Optional exterior rechargable battery for 8-20 hours working when power lost

DI feature

• Accept NO or NC dry contact

DO(T) feature

• Transistor output(drive voltage=power supply voltage, Drive current≤500mA)
• DO can be activated by remote or local schedule
• Remember 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
• Remember status when power lost

AI feature

• Standard 4-20mA (option: 0-5V) signal in, Sampling frequency: 33Hz, 10-bit precision)
• Convert signal to actual measure value,support adjustment
• Support offset and gain, alarm parameters, upload data setting
• Detect connect or disconnect to alarm

SMS feature

• Preset 10 phone numbers (support distribute authority to receive sms)
• Any device alarm status can be sent by sending sms
• Editable alarm and recover sms with time stamp
• Query any IO channel’s status or value via sms command
• Activate output by sending sms
• Configurable schedule for sms report IO channel's status or value
• Remote update parameters by sms
• Forward simcard overdue sms to admin
• Power lost and recover alarm by sending sms

Wireless network communication

• Optianal onboard GPRS, 3g, 4g, Wi-Fi module
• Support TCP/IP two-way communication with Max.4 servers(IP or domain)
• Support post or respond mode for data communication
• Communication protocol: Modbus TCP,http post, Cwt_IO(two-way communication)
• Support two-way data transparent transmission with RS485 or RS232

Modbus feature

• Polling salve over RS485 with modbus rtu protocol
• Can work as a modbus slave to be read/write by master(HMI, SCADA etc.)
• Support Modbus RTU to TCP convert over Ethernet or GPRS/3G