data logger gsm modem, GPRS based data logger
System Feature
- Industrial NXP 32-bit ARM MCU
- Double watchdog to ensure stability
- Support signal fileter
- Stable reconnection strategy for data transmit
- Update RTC automatically or manually, clock source support
Sms, NTP, CwtIO Server
- Configurable action schedule(second, minute, day, week,
month)
- Can automatically execute tasks according to preset Events
- Provide configure software, visual programming, over 100
parameters can be set
- 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
- 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
- Remember 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
- Support offset and gain, alarm parameters, upload data
setting
- Detect connect or disconnect to alarm
SMS feature
- Can add 10 administrator numbers for alarm and remote control
- Sms alarm when any IO channel triggered or out of preset
normal range
- Customizable sms messages, like alarm, receove, report
- 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
- Can query SIM card balance, sms forward
- Sms alar for power lost and recover
Wireless network communication
- Option network: cellular(2g/3g/4g) or Wi-Fi
- Communicate with up to 4 servers(IP or domain) by TCP/IP
- Events(e.g. alarm, timer) trigger upload data
- Support http post, Modbus TCP, CWT protocol over cellular or
Wi-Fi
- Transfer RS485 or RS232 Data to wireless network
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.)
- As modbus to gprs/3g gateway
