ethernet modbus rtu gateway, plc modbus rtu gateway

System Feature

• Adopted highly integrated industrial 32-bit ARM MCU
• Reliable performance with built-in double watchdog, 24×7 operation
• Dual digital filters for anti-noise
• Stable reconnection strategy for data transmit
• Automatically or manually update interior clock by sms or NTP or server
• Configurable action schedule(second, minute, day, week, month)
• Event-based linkage programming, e.g. alarm linkage output
• 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

• Accept NO or NC dry contact

DO(T) feature

• Open-collector output(drive voltage=power supply voltage, Drive current≤500mA)
• DO can be activated by remote or local schedule
• 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

• Accept 4-20mA (option: 0-5V), Sampling frequency: 33Hz, 10-bit precision)
• Convert 4-20mA(0-5V) to physical value
• Support offset and gain, alarm parameters, upload data setting
• Sensor disconnect alarm

SMS feature

• Can add 10 administrator numbers for alarm and remote control
• Any device alarm status can be sent by sending sms
• All alarm and recover sms text can be edited
• 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
• Forward simcard overdue sms to admin
• Support power lost sms alarm and recover sms(works with inside battery)

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
• Support http post, Modbus TCP, CWT protocol over cellular or Wi-Fi
• Can forward data between wireless network 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
• Run Modbus RTU or TCP protocol over GPRS/3G