DI810: 16-Channel 24 VDC Digital Input on S800
The DI810 is a 16-channel digital input module for 24 VDC field signals, and at 16 channels it sits at the point where channel density starts to matter. Discrete inputs are the highest-count I/O in most machines — every limit switch, proximity sensor and interlock is a point — so the module that reduces per-channel cost and cabinet width has an outsized effect on the overall rack layout.
| Feature | Specification |
|---|---|
| Manufacturer | ABB |
| Brand | ABB |
| Part Number | DI810 |
| Article number | 3BSE008508R1 | Type: Digital Input | Signal specification: 24 V d.c. | Number of channels: 16 | Signal type: Current sinking | HART: No | SOE: No | Redundancy: No | High integrity: No | Intrinsic safety: No | Mechanics: S800 | Input voltage range, "0": -30..+5 V | Input voltage range, "1": 15..30 V | Input impedance: 3.5 kΩ | Isolation: Groupwise isolated from ground, 2 groups with 8 channels | Filter times (digital, selectable): 2, 4, 8, 16 ms | Current limiting: Sensor power can be current limited by the MTU | Maximum field cable length: 600 meters (656 yards) | Rated insulation voltage: 50 V | Dielectric test voltage: 500 V a.c. | Power dissipation: Typ. 1.8 W | Current consumption +5 V Modulebus: 50 mA | Current consumption +24 V Modulebus: 0 | Current consumption +24 V external: 0 | CE mark: Yes | Electrical safety: EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201 | Hazardous Location: C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2 | Marine certification: ABS, BV, DNV, LR | Temperature, Operating: 0 to +55 °C (+32 to +131 °F) | Temperature, Storage: -40 to +70 °C (-40 to +158 °F) | Pollution degree: Degree 2, IEC 60664-1 | Corrosion protection: ISA-S71.04: G3 | Relative humidity: 5 to 95 %, non-condensing | Max ambient temperature: 55 °C (131 °F), for vertical mounting in compact MTU 40 °C (104 °F) | Protection class: IP20 according to IEC 60529 | Mechanical operating conditions: IEC/EN 61131-2 | EMC: EN 61000-6-4 and EN 61000-6-2 | Overvoltage categories: IEC/EN 60664-1, EN 50178 | Equipment class: Class I according to IEC 61140 | RoHS compliance: DIRECTIVE/65/EU (EN 50581:2012) | WEEE compliance: DIRECTIVE/2012/19/EU | Use with MTU: TU810, TU812, TU814, TU818, TU830, TU833, TU838, TU850 | Keying code: AA | Width: 45 mm (1.77”) | Depth: 102 mm (4.01”), 111 mm (4.37”) including connector | Height: 119 mm (4.7”) | Weight: 0.15 kg (0.33 lbs.) |
ABB S800 Digital Input Modules
The DI8 family covers channel counts, signal types and isolation. Confirming the variant against the field devices avoids a module that fits the slot but not the wiring:
| ABB DI8xx Part Number | Channel Count / Signal Type |
|---|---|
| DI801 | S800 digital input module — confirm channel count and signal type against the field devices |
| DI802 | S800 digital input module — confirm channel count and signal type against the field devices |
| DI803 | S800 digital input module — confirm channel count and signal type against the field devices |
| DI811 | S800 digital input module — confirm channel count and signal type against the field devices |
| DI814 | S800 digital input module — confirm channel count and signal type against the field devices |
| DI818 | S800 digital input module — confirm channel count and signal type against the field devices |
| DI820 | S800 digital input module — confirm channel count and signal type against the field devices |
| DI821 | S800 digital input module — confirm channel count and signal type against the field devices |
| DI825 | S800 digital input module — confirm channel count and signal type against the field devices |
| DI828 | S800 digital input module — confirm channel count and signal type against the field devices |
Why Channel Count Changes Rack Layout
A machine with 200 discrete inputs uses 13 modules at 16 channels, or 25 modules at 8 channels. The difference is not just 12 modules — it is 12 slots in the rack, additional power supply capacity, and additional backplane current draw. On a machine approaching rack capacity, that arithmetic is often the deciding constraint on the I/O design rather than a detail.
Where density matters, group-wise versus individual isolation becomes the trade-off: individual isolation costs slots and often channel count per module, but prevents one ground fault from taking down a group of unrelated signals.
Field Device Compatibility
Confirm the field devices signal at 24 VDC and that their switching characteristics suit solid-state input modules — leakage current from a mechanical contact or a two-wire proximity sensor can hold an input on or off when it should change state, and that fault reads as a wiring problem rather than a device compatibility problem.
Commissioning by Group
Bring up inputs in groups rather than individually on a 16-channel module. Verify the group LED and the point LEDs together: a group LED on with individual point LEDs not tracking their field devices narrows the fault to the field side or the terminal block rather than the module.
Ordering Notes
Confirm the module keying code against the MTU it is being fitted to, and verify current lifecycle status and availability before ordering — the DI810 is an Active lifecycle part on the S800 platform, which is worth confirming against the specific ordering code rather than assumed from the family.
Supply & terms: Stock status: In Stock · Condition: New · Warranty: One Year · Origin: Switzerland. Listed by AutoDCS Tech Parts Team · Last updated .
Availability & Condition at AutoDCSTech
| Part Number | DI810 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Switzerland |
