4 20ma to modbus tcp converter, modbus tcp to rtu converter
System Feature
- Cortex M3 32-bit ARM
- Double watchdog to ensure stability
- With signal filtering mechanisms
- 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
- Easy used GUI configure software for setting up to 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)
- Remote or local event activate DO on/off/pulse
- Remember status when power lost
DO(K) feature
- Relay NO contact 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)
- Transduce 4-20mA(0-5V) to actual value
- Can set parameters for value processing, alarm, data transmission
- Detect connect or disconnect to alarm
SMS feature
- Support 10 cell phone numbers for alarm and control
- Sms alarm when any IO channel triggered or out of preset normal range
- All alarm and recover sms text can be edited
- 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
- Sms remind for sim card overdue
- Power lost and recover alarm by sending sms
Wireless network communication
- Optianal onboard GPRS, 3g, 4g, Wi-Fi module
- TCP/IP connect at most 4 servers(support Static IP address or domain)
- Events(e.g. alarm, timer) trigger upload data
- Communication protocol: Modbus TCP,http post, Cwt_IO(two-way communication)
- Support two-way data transparent transmission with RS485 or RS232
Modbus feature
- Can work as a modbus master to poll salve over RS485
- As a RS485 I O module to be polled by modbus master
- Support Modbus RTU to TCP convert over Ethernet or GPRS/3G
