ABB DI818 3BSE069052R1 S800 I/O Systems Digital Input Module

Frequently Asked Questions (FAQ)

Q1: What signal type does the DI818 module accept?
A1: It supports 24 VDC input signals, within the range of 18–30 V DC.

Q2: How many input channels are available?
A2: The module provides 32 digital input channels, grouped into 2 isolated groups of 16.

Q3: Are the input groups electrically isolated?
A3: Yes, the 2 groups of 16 channels are individually isolated from each other.

Q4: Does each input channel have an indicator?
A4: Yes, every channel has a status LED showing the ON/OFF state.

Q5: Is digital filtering available on inputs?
A5: Yes, selectable filter times are 2, 4, 8, or 16 milliseconds to suppress noise.

Q6: What happens if the external supply voltage disappears?
A6: The module generates error signals via ModuleBus when supervision detects voltage loss.

Q7: Which MTUs can be used with the DI818?
A7: Compatible with ABB MTUs such as TU818 and TU830 for wiring and bus connectivity.

Q8: Is the module hot-swappable?
A8: No, power must be off before replacing the module to ensure safe operation.

3BSE069052R1 ABB DI818 Digital Input Module S800 I/O Systems

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