gsm rtu remote controller, sms relay switch controller

System Feature

• Adopted highly integrated industrial 32-bit ARM MCU
• 24×7 working, soft and hardware Double watchdog
• With signal filtering mechanisms
• Support automatic network reconnection and data re-send
• Automatically or manually update interior clock by sms or NTP or server
• Automatically execute preset task by schedule(second, minute, day, week, month)
• Can automatically execute tasks according to preset Events
• 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

• 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 output(NO, contact load: 2A / 125VAC,220VDC)
• DO can be activated by remote or local schedule
• Remain down status when power lost

AI feature

• Standard 4-20mA (option: 0-5V) signal in, Sampling frequency: 33Hz, 10-bit precision)
• Transduce 4-20mA(0-5V) to actual value
• Configurable parameters for signal acquisition, alarm, data communication
• Sensor disconnect alarm

SMS feature

• Can add 10 administrator numbers for alarm and remote control
• Send sms alarm when input is triggered or reach alarm level
• 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 setting via sms commands
• Can query SIM card balance, sms forward
• Power lost and recover alarm by sending sms

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
• Transfer RS485 or RS232 Data to wireless network