modbus tcp to modbus rtu gateway, modbus tcp relay gateway

System Feature

• Adopted highly integrated industrial 32-bit ARM MCU
• Double watchdog to ensure stability
• Support signal fileter
• Network-reconnect and retransmission to ensure data accurately transmit
• Update RTC automatically or manually, clock source support Sms, NTP, CwtIO Server
• Configurable action schedule(second, minute, day, week, month)
• Support Interlock programming, Event trigger
• Provide configure software, visual programming, over 100 parameters can be set
• Optional inside battery that life is 8-20 hours, cellular module Intelligent sleep when power lost

DI feature

• Accept NO or NC dry contact

DO(T) feature

• Open-collector output(drive voltage=power supply voltage, Drive current≤500mA)
• on/off/pulse DO by remote control or local event
• Remain down status when power lost

DO(K) feature

• Relay NO contact output(load: 2A / 125VAC,220VDC)
• Remote or local event activate DO on/off/pulse
• Remain down status when power lost

AI feature

• Standard 4-20mA (option: 0-5V) signal in, Sampling frequency: 33Hz, 10-bit precision)
• Convert 4-20mA(0-5V) to physical value
• Support offset and gain, alarm parameters, upload data setting
• Signal lost 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
• On/off/pulse 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

• 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
• 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
• Can be a I O module to be read/write by modbus master
• Support Modbus RTU to TCP convert over Ethernet or GPRS/3G