Products Description
ABB 3BHB003688R0101 DSAG143958 Digital Input Module
ABB 3BHB003688R0101 (DSAG143958) is a digital input module for ABB S800 I/O and 800xA DCS system. It collects discrete digital on/off signals from field sensors and switches, transfers the status data to the DCS controller via fieldbus communication.
This module adopts galvanic isolation design to resist field electromagnetic interference. It supports DIN rail installation inside the S800 rack, equipped with channel diagnosis and circuit protection, widely used for spare replacement of legacy ABB DCS systems.
Main Specifications
| No. | Item | Parameter |
|---|---|---|
| 1 | Brand | ABB |
| 2 | Model | 3BHB003688R0101, DSAG143958 |
| 3 | Module Type | Digital Input Module |
| 4 | System Platform | ABB S800 I/O / System 800xA DCS |
| 5 | Signal Type | 24VDC Digital Input |
| 6 | Isolation | Galvanic isolation for anti-interference |
| 7 | Mounting | DIN rail mount, S800 I/O rack compatible |
| 8 | Operating Temperature | 0℃ ~ +60℃ |
Core Functions
| No. | Function Description |
|---|---|
| 1 | Acquire 24VDC discrete on/off signals from field switches and digital sensors |
| 2 | Transmit field equipment status data to DCS controller through fieldbus |
| 3 | Galvanic isolation to block ground loop and suppress electromagnetic noise |
| 4 | Built-in channel diagnosis, detect module and channel faults and trigger alarms |
| 5 | Overvoltage and surge protection to prevent damage from field signal spikes |
Application Scenarios
| No. | Application |
|---|---|
| 1 | Power plant boiler, turbine 800xA DCS control cabinet |
| 2 | Petrochemical, oil & gas continuous process monitoring system |
| 3 | Pulp & paper, metallurgy industrial automation control system |
| 4 | Valve limit switch, equipment status digital signal acquisition |
| 5 | Legacy ABB S800 I/O system spare parts replacement and maintenance |
FAQ
| No. | Question & Answer |
|---|---|
| 1 | Q:What is ABB 3BHB003688R0101 DSAG143958? A:It is ABB S800 I/O digital input module for 800xA DCS, used to collect 24VDC digital on/off signals from field devices and send status information to the controller. |
| 2 | Q:What is the main advantage of this DI module? A:It has galvanic isolation design, strong anti-interference ability for harsh industrial field, supports real-time channel fault diagnosis for stable process control. |
| 3 | Q:Which rack does this module fit? A:It is designed for ABB S800 I/O rack, matched with ABB AC800M controller and System 800xA DCS platform. |
