modbus rtu 485 gateway, modbus data acquisition gateway
System Feature
- Industrial NXP 32-bit ARM MCU
- Reliable performance with built-in double watchdog, 24×7
operation
- Dual digital filters for anti-noise
- Network-reconnect and retransmission to ensure data
accurately transmit
- Update RTC automatically or manually, clock source support
Sms, NTP, CwtIO Server
- Automatically execute preset task by schedule(second, minute,
day, week, month)
- Event-based linkage programming, e.g. alarm linkage output
- 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
- 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
- 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
- Standard 4-20mA (option: 0-5V) signal in, 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
- Preset 10 phone numbers (support distribute authority to
receive sms)
- Send sms alarm when input is triggered or reach alarm level
- Editable alarm and recover sms with time stamp
- Query any IO channel’s status or value via sms command
- Activate output by sending sms
- Sms report any IO channel’s status or value on schedule
- 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)
- Support post or respond mode for data communication
- Communicate with server by optional Cwt_IO, Modbus TCP, http
post protocol
- Can forward data between wireless network with RS485 or RS232
Modbus feature
- polling salve over RS485 with modbus rtu protocol
- 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
