ABB DI840

Product Name: ABB DI840 Digital Input Module
Manufacturer: ABB
Function: This is a digital input module for ABB’s S800 I/O system.
Product Description:

The ABB DI840 is a 16-channel 24 V d.c. digital input module.
It is designed for use in ABB’s S800 I/O system to receive digital input signals.
It supports single and redundant applications.
The main function is digital input.
The module belongs to the ABB S800 I/O system.

Main features and specifications:

Type: Digital Input Module
Series: S800 I/O
Number of channels: 16
Voltage: 24 V d.c.
Application: Single application or redundant application
From ABB’s documents:
Maximum field cable length: 600 meters (656 yards)
Event recording accuracy: 0 ms / +1.3 ms
Event recording resolution: 1 ms