Description
- Model: DI810
- ABB Article Number: 3BSE008508R1
- Part Type: S800 I/O Digital Input Module
- Channels: 16 digital inputs
- Signal: 24 V DC current sinking
- Isolation: Two individually isolated groups of 8 channels
- Compatible MTUs: TU810, TU812, TU814, TU818, TU830, TU833, TU838, TU850
Technical Introduction
The ABB DI810 3BSE008508R1 is a 16-channel digital input module for the ABB S800 I/O platform, designed for 24 V DC field signals.
Each channel uses current-limiting and EMC-protection circuitry with optical isolation and front-panel status indication. The 16 inputs are arranged as two isolated groups of eight, with process-voltage supervision for each group. The supervision status is available through the ModuleBus, giving the control system a way to detect loss of process supply rather than simply reporting inactive field signals.
Best Suited For
- ABB System 800xA S800 I/O installations
- Replacement of failed or aging DI810 input modules
- PLC/DCS spare inventory for 24 V DC discrete field signals
Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Model | DI810 |
| Article Number | 3BSE008508R1 |
| Product Type | Digital Input Module |
| I/O Family | S800 I/O |
| Signal Specification | 24 V DC |
| Number of Channels | 16 |
| Signal Type | Current sinking |
| Input Voltage, Logic 0 | -30 to +5 V |
| Input Voltage, Logic 1 | 15 to 30 V |
| Input Impedance | 3.5 kΩ |
| Input Current | 6 mA at 24 V DC |
| Isolation | 2 groups of 8 channels, groupwise isolated from ground |
| Digital Filter | Selectable: 2, 4, 8, or 16 ms |
| Maximum Field Cable Length | 600 m / 656 yd |
| Rated Insulation Voltage | 50 V |
| Dielectric Test Voltage | 500 V AC |
| Typical Power Dissipation | 1.8 W |
| ModuleBus Current | 50 mA at +5 V |
| HART | No |
| SOE | No |
| Redundancy | No |
| High Integrity | No |
| Intrinsic Safety | No |
| Compatible MTUs | TU810, TU812, TU814, TU818, TU830, TU833, TU838, TU850 |
| Mechanics | S800 |
- ABB DI810 3BSE008508R1
ABB’s current product data confirms the DI810 as a 16-channel, 24 V DC current-sinking digital input module and identifies article number 3BSE008508R1.
Field Engineer’s Tech Notes
1. Check the signal direction before swapping modules.
is a current-sinking digital input module. Do not substitute it with a superficially similar 24 V DC input module without checking the field-device wiring and signal-source arrangement. ABB’s DI814, for example, is also a 24 V DC 16-channel module but uses current sourcing.
2. Match the MTU and keying arrangement.
The is designed for specific S800 Module Termination Units. ABB lists TU810, TU812, TU814, TU818, TU830, TU833, TU838, and TU850 as compatible MTUs. Check the installed MTU and mechanical keying before replacing the module; changing the electronics does not automatically make an incompatible terminal arrangement acceptable.
Adaptive QA & Testing Protocol
For a replacement, incoming inspection starts with verification of / 3BSE008508R1, PCB and housing condition, connector integrity, front-panel LEDs, and signs of corrosion or storage damage.
Functional testing should use a compatible test arrangement. Individual digital channels can be exercised with controlled 24 V DC input signals while monitoring the corresponding channel LEDs and ModuleBus status. The two isolated groups should be checked independently, including the process-voltage supervision function. Selectable filter settings can also be verified where the test setup supports configuration access.
Before field installation, point-to-point I/O mapping should be checked against the approved cabinet drawings and existing channel assignment.
Test reports, inspection photographs, and test videos are available upon request.
Buyer’s FAQ
Is ABB 3BSE008508R1 a 24 V DC digital input module?
Yes. ABB specifies the as a 16-channel 24 V DC digital input module using current-sinking inputs. The specified input range is 18–30 V DC, with logic “1” defined as 15–30 V.
Can I use with any ABB terminal unit?
No. ABB specifies particular compatible MTUs, including TU810, TU812, TU814, TU818, TU830, TU833, TU838, and TU850. Confirm the installed terminal unit before ordering.
Is this module suitable as a direct replacement for an existing ?
A matching 3BSE008508R1 article number is the correct starting point, but verify the installed configuration, MTU, wiring, I/O mapping, and application configuration before replacement.
What condition and warranty can be supplied?
Availability may include New Surplus (NSFP), refurbished, or tested surplus inventory depending on stock. Request the exact condition, test report, photographs, warranty period, and shipping lead time when requesting a quotation.
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