Remote Terminal Unit GSM RTU Controller Switch Double Watchdog 4 - 20mA

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System Feature

•  Adopted highly integrated industrial 32-bit ARM MCU
•  24×7 working, soft and hardware Double watchdog
•  Dual digital filters for anti-noise
•  Support automatic network reconnection and data re-send
•  Automatically or manually update interior clock by sms or NTP or 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

•  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)
•  DO can be activated by remote or local schedule
•  Remain down status when power lost

AI feature

•  4-20mA (option: 0-5V) in, Sampling frequency: 33Hz, 10-bit precision)
•  Transduce 4-20mA(0-5V) to actual value
•  Configurable parameters for signal acquisition, alarm, data communication
•  Signal lost 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
•  Can send sms command to request any channel status or value
•  Activate output by sending sms
•  Can set interval to report IO channel's status or value by sms
•  Remote update parameters by sms
•  Can query SIM card balance, sms forward
•  Support power lost sms alarm and recover sms(works with inside battery)

Wireless network communication

•  With 2g, 3g, 4g, Wi-Fi version
•  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
•  Support two-way data transparent transmission with RS485 or RS232

Modbus feature

•  Can work as a modbus master to poll salve over RS485
•  As a RS485 I O module to be polled by modbus master
•  Run Modbus RTU or TCP protocol over GPRS/3G

3g sms controller

gsm sms controller

Remote Terminal Unit GSM RTU Controller Switch Double Watchdog 4 - 20mA Images