sim machine to machine, machine to machine connection
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
- Support automatic network reconnection and data re-send
- Update RTC automatically or manually, clock source support Sms, NTP, CwtIO Server
- Can set multiple timers(second, minute, day, week, month) to execute actions, e.g. output, upload data, change setting
- Support Interlock programming, Event trigger
- 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
- Transistor 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 NO contact output(load: 2A / 125VAC,220VDC)
- DO can be activated by remote or local schedule
- Remain down status when power lost
AI feature
- 4-20mA (option: 0-5V) in, Sampling frequency: 33Hz, 10-bit precision)
- Convert signal to actual measure value,support adjustment
- Can set parameters for value processing, alarm, data transmission
- Signal lost 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
- Can set interval to report IO channel's status or value by sms
- Remote setting via sms commands
- Can query SIM card balance, sms forward
- Power lost and recover alarm by sending sms
Wireless network communication
- Option network: cellular(2g/3g/4g) or Wi-Fi
- TCP/IP connect at most 4 servers(support Static IP address or domain)
- Automatically Upload data when alarm or according to schedule
- Communicate with server by optional Cwt_IO, Modbus TCP, http post protocol
- Can forward data between wireless network with RS485 or RS232
Modbus feature
- Can be modbus master read/write salve over RS485
- 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
