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