modbus tcp to rtu gateway, wifi modbus 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
- Update RTC automatically or manually, clock source support Sms, NTP, CwtIO 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
- 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
- Remain down status when power lost
DO(K) feature
- Relay NO output(load: 2A / 125VAC,220VDC)
- on/off/pulse DO by remote control or local event
- Status memory function for power lost
AI feature
- Accept 4-20mA (option: 0-5V), Sampling frequency: 33Hz, 10-bit precision)
- Transduce 4-20mA(0-5V) to actual value
- Support offset and gain, alarm parameters, upload data setting
- Sensor disconnect alarm
SMS feature
- Preset 10 phone numbers (support distribute authority to receive sms)
- Any device alarm status can be sent by sending sms
- Customizable sms messages, like alarm, receove, report
- Can send sms command to request any channel status or value
- Activate 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
- Support power lost sms alarm and recover sms(works with inside battery)
Wireless network communication
- With 2g, 3g, 4g, Wi-Fi version
- 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
- Support two-way data transparent transmission with RS485 or RS232
Modbus feature
- polling salve over RS485 with modbus rtu protocol
- As a RS485 I O module to be polled by modbus master
- As modbus to gprs/3g gateway
