BECKHOFF KL3404
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KL3404 | Bus Terminal, 4-channel analog input, voltage, ±10 V, 12 bit, single-ended:
The KL3404 analog input terminal is designed to handle signals within the range of -10 to +10 V. It digitizes the voltage with a resolution of 12 bits and transmits the data, maintaining electrical isolation, to the higher-level automation device. Within the KL3404 Bus Terminal, the four inputs are 2-wire versions and share a common ground potential. The internal ground serves as the reference ground for the inputs. LEDs on the terminal provide visual feedback on the data exchange with the Bus Coupler.