What are voltage/current thresholds of MV110 DI?

For MV110 Digital inputs: Max. current 8.5 mA (with 27 V) Logical „1“, min. 4.5 mA Logical „0“, max. 1.5 mA Based on our experience, in case a digital input of MV110 does not register the applied voltage/current, it is possible that the values on the output of the power generator are not enough.