modbus rtu to modbus tcp gateway, modbus tcp client gateway

System Feature

• Adopted highly integrated industrial 32-bit ARM MCU
• 24×7 working, soft and hardware Double watchdog
• With signal filtering mechanisms
• Stable reconnection strategy for data transmit
• Synchronize clock with multiple way, Sms, NTP, CwtIO 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
• Provide console utility for visual programming over 100 parameters
• Optional exterior rechargable battery for 8-20 hours working when power lost

DI feature

• Trigger dry contact(NO or NC)

DO(T) feature

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

DO(K) feature

• Relay output(NO, contact load: 2A / 125VAC,220VDC)
• DO can be activated by remote or local schedule
• Remember 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
• Support offset and gain, alarm parameters, upload data setting
• Detect connect or disconnect to alarm

SMS feature

• Can add 10 administrator numbers for alarm and remote control
• Send sms alarm when input is triggered or reach alarm level
• 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
• Sending sms command to update setting
• Sms remind for sim card overdue
• Sms alar for power lost and recover

Wireless network communication

• With 2g, 3g, 4g, Wi-Fi version
• TCP/IP connect at most 4 servers(support Static IP address or domain)
• Events(e.g. alarm, timer) trigger upload data
• 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