remote terminal unit manufacturers, gsm remote control switch
System Feature
- Adopted highly integrated industrial 32-bit ARM MCU
- 24×7 working, soft and hardware Double watchdog
- Dual digital filters for anti-noise
- Support automatic network reconnection and data re-send
- Automatically or manually update interior clock by sms or NTP
or 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
- Trigger dry contact(NO or NC)
DO(T) feature
- Open-collector 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)
- Transduce 4-20mA(0-5V) to actual value
- Configurable parameters for signal acquisition, alarm, data
communication
- 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
- Editable alarm and recover sms with time stamp
- 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 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
- 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
- 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
- Run Modbus RTU or TCP protocol over GPRS/3G
