ABB DI810 3BSE008508R1 S800 Digital Input Module
Configured for 24 VDC digital signal acquisition and status supervision in ABB S800 I/O platforms, the ABB DI810 3BSE008508R1 (DI810 Digital Input Module) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
| Base Model | Catalog Part Number | Channel Configuration | Voltage Rating | Termination Unit Compatibility |
|---|---|---|---|---|
| DI810 | 3BSE008508R1 | 16 Channels (2 Isolated Groups of 8) | 24 VDC (18 to 30 VDC) | TU810, TU812, TU814, TU818, TU830, TU833, TU838, TU850 |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DI810 (3BSE008508R1) |
| Brand | ABB |
| Origin | Sweden |
| Weight | 0.2 kg (0.44 lbs) |
| Dimensions | 11.9 cm x 4.5 cm x 10.2 cm (4.7 in x 1.8 in x 4.0 in) |
| Operating Temp | 0 to +55 deg C |
| Power Consumption | Typical 1.8 W (50 mA from +5 VDC ModuleBus) |
| Input Channels | 16 digital inputs (2 individually isolated groups of 8) |
| Signal Level "0" | -30 to +5 VDC |
| Signal Level "1" | +15 to +30 VDC |
| Input Current | 6 mA at 24 VDC |
| Input Impedance | 3.5 kohm |
| Process Voltage Supervision | 1 voltage supervision input per group |
| Isolation Voltage | 50 V rated isolation, group-to-group and group-to-ground |
| Mechanical Keying | Code AA |
| Tariff Code | 8538907080 |
Backplane Bus Communication Velocity & Channel-to-Channel Isolation
The ABB DI810 3BSE008508R1 interfaces directly with the ModuleBus backplane to maintain high communication velocity and deterministic state reporting. Each input channel incorporates individual optical isolation barriers, current-limiting circuitry, and dedicated EMC filtering to suppress field transients. Process voltage supervision inputs actively detect supply failure within each isolated 8-channel group and trigger fault interrupts across the ModuleBus backplane to safeguard upstream logic execution.
Frequently Asked Questions
Q: How does the DI810 module signal a loss of field process voltage?
A: Each isolated 8-channel group includes a dedicated process voltage supervision input that detects supply failures and transmits channel error signals directly to the controller via the ModuleBus interface.
Q: What are the current and power requirements drawn from the ModuleBus backplane?
A: The DI810 module draws a low current of 50 mA from the +5 VDC ModuleBus logic rail, resulting in a typical total power dissipation of 1.8 W.
Q: Which Module Termination Units (MTUs) support physical installation of the DI810?
A: The module installs directly onto standard S800 termination units including models TU810, TU812, TU814, TU818, TU830, TU833, TU838, and TU850 using keying code AA.
Field Installation Guidelines
- Set the mechanical keying wheel on the matching Module Termination Unit (MTU) to position AA prior to mounting the DI810 module.
- Ensure backplane ModuleBus power is isolated before attaching or releasing the module from the termination unit base.
- Connect external 24 VDC loop power to both isolated group terminals to ensure active process voltage supervision functionality across all 16 channels.
- Terminate shield drain wires at the designated MTU grounding bar to ensure proper EMC component performance and transient protection.
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