modbus tcp switch gateway, modbus rtu gateway

System Feature

• Adopted highly integrated industrial 32-bit ARM MCU
• 24×7 working, soft and hardware Double watchdog
• Support signal fileter
• 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 battery that life is 8-20 hours, cellular module Intelligent sleep when power lost

DI feature

• Monitor dry contact(NO or NC)

DO(T) feature

• Relay drivable output(drive voltage=power supply voltage, Drive current≤500mA)
• on/off/pulse DO by remote control or local event
• Status memory function for power lost
• DO(K) feature
• Relay output(NO, contact load: 2A / 125VAC,220VDC)
• Remote or local event activate DO on/off/pulse
• Status memory function for power lost

AI feature

• 4-20mA (option: 0-5V) in, Sampling frequency: 33Hz, 10-bit precision)
• Convert 4-20mA(0-5V) to physical value
• Configurable parameters for signal acquisition, alarm, data communication
• Sensor disconnect 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
• Activate output by sending sms
• Can set interval to report IO channel's status or value by sms
• Remote update parameters by sms
• Sms remind for sim card overdue
• Support power lost sms alarm and recover sms(works with inside battery)

Wireless network communication

• Optianal onboard GPRS, 3g, 4g, Wi-Fi module
• TCP/IP connect at most 4 servers(support Static IP address or domain)
• Automatically Upload data when alarm or according to schedule
• 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 be a I O module to be read/write by modbus master
• As modbus to gprs/3g gateway