ماژول ورودی دیجیتال ABB مدل DI831، کد فنی 3BSE013212R1

The DI831 is a 16 channel 48 V d.c. digital input module for the S800 I/O. The input voltage range is 36 to 60 V d.c. and the input current is 4 mA at 48 V d.c.). Each input channel consists of current limiting components, EMC protection components, input state indication LED and optical isolation barrier. The module cyclically performs self-diagnostics. Module diagnostics include:

Process power supply supervision (results in a module failure, if detected)
Event queue full
Time synchronization missing.

The input signals can be digitally filtered. The filter time can be set in the range 0 to 100 ms. This means that pulses shorter than the filter time are filtered out and pulses longer than specified filter time get through the filter.
Features and benefits

16 channels for 48 V d.c. inputs with current sinking
2 isolated groups of 8 channels with voltage supervision
Input status indicators
Sequence of event (SOE) functionality
Shutter filter (3BSE013212R1)