The reset button is located between the supply voltage connection and Ethernet 1.
The button is located under the lid and can be reached with a small screwdriver. However, use caution and do not use a pointed screwdriver that could end up next to the button.
The reset button allows you to restart the PiiGAB M-Bus 900, set the network settings to default (DHCP plus random IP address) or change the web login to default (Admin, Admin).
The reset button should be used as follows. Press the button until the selected LED is lit, when the LED flashes rapidly, press the button again and the selected function will be executed.
Example: Press the button once to switch on P1 (Rx). Wait for P1 (Rx) to flash quickly and then press the button again. If you press the button while it is flashing rapidly, the PiiGAB M-Bus 900S/T will automatically restart. If you do not press while the light is flashing, nothing will happen.
The table below describes the functions of the button:
| Restart | Press the button 1 time and wait until the P1/Tx LED flashes rapidly. Then press the button an additional time while it is flashing | The device is restarted. |
| Resetting IP settings | Press the button 1 time and wait until the P1/Tx LED flashes rapidly. Then press the button an additional time while it is flashing. | The Ethernet port of the device returns to its original settings. DHCP and randomised IP if there is no DHCP server available. |
| Resetting passwords | Press the button 6 times and wait until the P3/Rx line flashes rapidly. Then press the button an additional time while it is flashing. | If a password has been selected for the login, it now returns to Admin : Admin |
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