Frequently Asked Questions (FAQ) — ABB DI828

Q1: What is the primary use of DI828?
A1: It is used for detecting and monitoring 120 V AC or DC digital signals in industrial automation systems.

Q2: Is each input isolated in the DI828 module?
A2: Yes, all 16 channels are individually optically isolated for improved safety and signal accuracy.

Q3: Can DI828 be used in both AC and DC circuits?
A3: Yes, it supports a wide input range: 77–130 V AC and 75–130 V DC.

Q4: Does it have supervision functionality?
A4: Yes, it includes voltage supervision for two groups of channels with LED status indicators.

Q5: What kind of filtering does it offer?
A5: It supports selectable digital filtering at 2.5 ms, 5 ms, 10 ms, and 20 ms.

Q6: How is the DI828 connected physically?
A6: It mounts on S800 I/O termination units like TU830 or TU833 via the ModuleBus.

Q7: What environments is it suited for?
A7: It performs reliably in industrial settings with high electrical noise or requiring channel separation.

Q8: Can the module be hot-swapped during operation?
A8: Yes, the S800 system design allows for safe hot-swapping of modules under certain conditions.

Q9: How heavy is the DI828?
A9: It weighs approximately 0.15 kg.

Q10: Does DI828 work with other brands’ PLCs?
A10: While optimized for ABB systems, it can be integrated into third-party DCS/PLC architectures with proper configuration.