I have an FMM130 and i have connected the digital input 2 to the fuel pump level senser , from my multimeter i have an stable reading , but from the I/O configurator panel the value is oscillating so therefore i cannot calibrate it
Good day, please check the connection properly, check if there are open wires from where the analog inputs can detect any parasitic voltage and try to use the latest firmware for the device.
If all are correctly set, and the issues still happen please create an HD ticekt or contact your sales manager.