DI821 ABB 3BSE008550R1, Digital Input Module

The DI821 is a 8 channel, 230 V a.c./d.c, digital input module for the S800 I/O. This module has 8 digital inputs. The ac input voltage range is 164 to 264 V and the input current is 11 mA at 230 V a.c. The d.c. input voltage range is 175 to 275 volt and the input current is 1.6 mA at 220 V d.c. The inputs are individually isolated.

Every input channel consists of current limiting components, EMC protection components, input state indication LED, optical isolation barrier and an analog filter (6 ms).

Channel 1 can be used as voltage supervision input for channels 2 - 4, and channel 8 can be used as voltage supervision input for channels 5 - 7. If the voltage connected to channel 1 or 8 disappears, the error inputs are activated and the Warning LED turns on. The error signal can be read from the ModuleBus.

Features and benefits
-8 channels for 120 V a.c./d.c. inputs
-Individually isolated channels
-Voltage supervision of field input power
-Input status indicators
-Signal filtering

Frequently Asked Questions:
1.What is the temperature of operating and storage of  DI821?
Temperature, Operating 0 to +55 °C (+32 to +131 °F), approvals are issued for +5 to +55 °C
Temperature, Storage -40 to +70 °C (-40 to +158 °F)

2.What is Maximum field cable length of DI821?
200 meters (219 yards) 100 pF/m for a.c., 600 meters (656 yards) for d.c.

Datasheet Link:

DI821 ABB 3BSE008550R1, Digital Input Module PDF Datasheet