KL302x/KS302x - Introduction

KL302x/KS302x - Introduction 1:
KL3021, KL3022

The KL3021 and KL3022 analog input terminals process signals in the range between 4 mA and 20 mA. The current is digitized to a resolution of 12 bits, and is transmitted, in an electrically isolated form, to the higher-level automation device. The input channels of the Bus Terminals have differential inputs and possess a common, internal ground potential. An open lead or overload condition are detected, and the terminal status is relayed to the controller via the K-bus. The Run LEDs indicate the exchange of data with the Bus Coupler, while the Error LEDs indicate overload and wire breakage.