modbus tcp rtu converter, analog to modbus converter

System Feature

• Adopted highly integrated industrial 32-bit ARM MCU
• Double watchdog to ensure stability
• Support signal fileter
• Stable reconnection strategy for data transmit
• Automatically or manually update interior clock by sms or NTP or server
• Can set multiple timers(second, minute, day, week, month) to execute actions, e.g. output, upload data, change setting
• Can automatically execute tasks according to preset Events
• Easy used GUI configure software for setting up to 100 parameters
• 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

• Transistor output(drive voltage=power supply voltage, Drive current≤500mA)
• Remote or local event activate DO on/off/pulse
• Status memory function for power lost

DO(K) feature

• Relay NO output(load: 2A / 125VAC,220VDC)
• on/off/pulse DO by remote control or local event
• Remain down 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
• Configurable parameters for signal acquisition, alarm, data communication
• Sensor disconnect alarm

SMS feature

• Support 10 cell phone numbers for alarm and control
• Send sms alarm when input is triggered or reach alarm level
• Customizable sms messages, like alarm, receove, report
• Remote get device status or value by sending sms command
• On/off/pulse output by sending sms
• Sms report any IO channel’s status or value on schedule
• Remote update parameters by sms
• 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
• Support TCP/IP two-way communication with Max.4 servers(IP 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

Modbus feature

• Can work as a modbus master to poll salve over RS485
• 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