The KL1414 digital input terminal acquires the binary 24 V DC control signals from the process level and transmits them, in an electrically isolated form, to the higher-level automation unit. The Bus Terminal contains four channels that indicate its signal state by means of light emitting diodes.
The KL4414 analog output terminal generates signals in the range between 0 to 20 mA. The power is supplied to the process level with a resolution of 12 bits and is electrically isolated.