I use an “Industrial IoT Wireless to USB Modem” with an “Industrial Wireless Vibration And Temperature Sensor”. The whole thing refused to work for a long time until I discovered the cause:
Every time I disconnect the modem from the power, it falls into a state of deep sleep. The only way to restart the modem is to reset it by connecting pins 5 and 10 of the Xbee module with a wire jumper. This means that I have to reset the modem every time the power goes out.
You will agree with me that this is not ideal in an industrial context where reliability is very important.
Does anyone have any idea what causes this behaviour? Is that normal?
module sleep settings is fine. What software are you using to read the sensor data ?
after disconnecting and connecting the modem do you restart the software ?
does the modem has micro usb port or mini usb port? the one with micro usb ( PR55-17A) is more rugged and has in built in reset mechanism.
The modem is the rugged one with the micro usb port.
The software I use for testing is “ncd.io Wireless Vibration Tester-V2”
Even when the router remains powered, I get this error message the first time I try to connect to the software:
Then I try a second time and this time it works
It seems that my modem only works when it’s connected to an external power supply.
Only the usb interface module of the modem seems to be powered when it’s connected only to the usb port.
Yup older version issue…
so if you plug the power first and than plug the usb port it should work all the time… it makes no sense but somehow usb serial lines screw up the sb3 modem. this makes a great wireless repeater but not the best USB mode…
I would like to confirm that I have received the replacement receiver. Thank you for your exceptional customer service. We will certainly continue to do business with you!