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KL3011, KS3011, KL3012, KS3012 | 1-, 2-channel analog input terminals 0…20 mA


The KL3011 and KL3012 analog input terminals handle signals in the range from 0 to 20 mA. The current is digitised 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. The KL3011 is the single-channel variant and is characterised by its fine granularity and electrical isolation. The KL3012 combines two channels in one housing. An open lead or overload condition are detected, and the terminal status is relayed to the controller via the K-bus. The run LEDs give an indication of the data exchange with the Bus Coupler. The error LEDs indicate an overload condition and a broken wire.

Technical data KL3011 | KS3011 KL3012 | KS3012
Number of inputs 1 2
Power supply via the K-bus
Signal current 0…20 mA
Technology differential input
Internal resistance 80 ? + 0.7 V
Common-mode voltage UCM 35 V max.
Resolution 12 bits
Conversion time ~ 1 ms ~ 2 ms
Measuring error ±0. % (relative to full scale value)
Surge voltage resistance 35 V DC
Electrical isolation 500 V (K-bus/signal voltage)
Current consumption power contacts – (no power contacts)
Current consumpt. K-bus typ. 60 mA
Bit width in the process image input: 1 x 16 bit data (1 x 8 bit control/status optional) input: 2 x 16 bit data (2 x 8 bit control/status optional)
Weight approx. 70 g
Operating/storage temperature 0…+55 °C/-25…+85 °C -25…+60 °C/-40…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27/29
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Pluggable wiring for all KSxxxx Bus Terminals
Approvals CE, UL, Ex, GL

Special terminals  
KL3012-0010 Siemens S5 format
KL3012-0011 altered range: 0…21.5 mA, maximum value corresponds to 21.5 mA instead of 20 mA
KL3012-0012 fast µP, scan time approx. 0.5 ms
KL3012-0050 Siemens S7 format

Product announcement
KL3011 and KL3012 with operating temperature 0…+55 °C (storage temperature -25…+85 °C) available;
KL3012 with operating temperature -25…+60 °C (storage temperature -40…+85 °C) estimated market release 1st quarter 2012