4-channel analog input terminal -10…+10 V KL3404
Run LED4
Run LED2
Run LED3 
Run LED1 
Power contact
+24 V
Power contact 0 V
Input 1
Input 3
Input 2
Input 4
Top view 
Contact assembly 
extended temperature range
extended shock and vibration range

KL3404 | 4-channel analog input terminal -10…+10 V

The analog input terminal KL3404 processes signals in the range between -10 and +10 V. The voltage is digitised to a resolution of 12 bits and is transmitted, electrically isolated, to the higher-level automation device. In the KL3404 Bus Terminal, the four inputs are 2-wire versions and have a common ground potential. The reference ground of the inputs is the internal ground. The LEDs indicate the data exchange with the Bus Coupler.

Technical data KL3404 | KS3404
Number of inputs 4
Power supply via the K-bus
Signal voltage -10…+10 V
Technology single-ended
Internal resistance > 130 kΩ
Common-mode voltage UCM
Conversion time ~ 2 ms
Resolution 12 bit (for 0…10 V range: resolution 11 bit)
Measuring error < ±0.3 % (relative to full scale value)
Electrical isolation 500 V (K-bus/signal voltage)
Current consumption power contacts
Current consumption K-bus typ. 100 mA
Bit width in the process image input: 4 x 16 bit data (4 x 8 bit control/status optional)
Configuration no address or configuration setting
Special features
Weight approx. 75 g
Operating/storage temperature -25…+60 °C/-40…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
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