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Product Overview
The ABB DO820 (part number 3BSE008514R1) is a 16-channel digital output module belonging to the S800 I/O series. Designed for industrial automation systems, this module is used to switch external devices such as relays, actuators, or signal lights. With high-speed response, robust diagnostics, and galvanic isolation, the DO820 provides dependable and safe operation in complex control environments.
The module supports 24 V DC transistor (PNP) outputs, capable of driving both resistive and inductive loads. DO820 integrates seamlessly with ABB’s AC 800M controllers and other automation components, delivering excellent flexibility for process control applications in diverse industrial sectors.
Key Features
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16-channel digital outputs with transistor (PNP) switching
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Rated for 24 V DC operation
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Short-circuit and overload protection for each channel
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Galvanic isolation between channels and system bus
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High switching frequency and fast response time
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Individual channel and module-level status LEDs
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Fully compatible with ABB S800 I/O and AC 800M systems
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DIN rail mountable for modular cabinet design
Technical Specifications
| Parameter | Specification |
|---|---|
| Number of Channels | 16 digital output channels |
| Output Type | Transistor, sourcing (PNP) |
| Rated Output Voltage | 24 V DC (nominal) |
| Maximum Output Voltage | 30 V DC |
| Output Current per Channel | 0.5 A maximum |
| Output Voltage Drop | ≤ 0.3 V at 0.5 A |
| Switching Frequency | Up to 10 kHz |
| Load Type | Resistive, inductive |
| Diagnostics | Short-circuit and overload protection |
| Galvanic Isolation | Between outputs and system bus |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95% non-condensing |
| Dimensions | 45 x 102 x 119mm |
| Weight | 0.23 kg |
| Certifications | CE, UL, CSA, RoHS compliant |
Product Advantages
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High Reliability: Solid-state outputs with protection against overloads and shorts improve operational uptime.
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Compact Design: 16 channels in a narrow module width reduce control cabinet space requirements.
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Fast Switching: Suitable for high-speed control applications thanks to high switching frequency.
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Integrated Diagnostics: Protects field devices and ensures early fault detection.
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Easy Integration: Seamlessly connects to ABB’s AC 800M and other control systems using S800 I/O.
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LED Indication: Clear visual feedback on individual channel status supports fast troubleshooting.
Industry Applications
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Discrete manufacturing: machine tools, robotics, assembly lines
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Power plants: control of auxiliary devices and alarms
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Oil & gas: on/off control for field instruments and actuators
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Water & wastewater treatment: pump, valve, and blower control
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Building automation: lighting, gate, and HVAC control
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Chemical and pharmaceutical industries: process machine control
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Material handling: conveyor and sortation system actuation
Frequently Asked Questions (FAQ)
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Q: What is the rated voltage for the DO820 module?
A: 24 V DC nominal, with a maximum of 30 V DC. -
Q: How many digital outputs does it provide?
A: The DO820 offers 16 transistor (PNP) digital output channels. -
Q: Is there short-circuit protection on each channel?
A: Yes, each channel is protected against overloads and short circuits. -
Q: What types of loads can the module drive?
A: It supports both resistive and inductive loads. -
Q: Can it switch outputs at high frequency?
A: Yes, up to 10 kHz switching frequency is supported. -
Q: What diagnostic functions are included?
A: The module includes short-circuit and overload diagnostics. -
Q: Is the module galvanically isolated?
A: Yes, it features galvanic isolation between the output channels and the bus. -
Q: What is the operating temperature range?
A: -25°C to +70°C. -
Q: What are the module’s physical dimensions?
A: 45 x 102 x 119mm. -
Q: Is this module compatible with the ABB AC 800M controller?
A: Yes, it integrates seamlessly with ABB’s AC 800M and S800 I/O systems.
Related or Compatible Models (Same Series)
| Model | Description |
|---|---|
| DI820 | 16-channel digital input module |
| DO840 | 8-channel relay digital output module |
| AI820 | 4-channel analog input module |
| AO845 | 8-channel analog output module |
| CI865 | PROFIBUS DP communication interface module |
| TU810 | Terminal unit base for S800 I/O modules |
Popular ABB Models (Same Brand)
| Model | Description |
|---|---|
| AI810 | 8-channel analog input module |
| DI825 | 16-channel digital input module |
| DO630 | 32-channel digital output module |
| PM864 | High-performance AC 800M controller |
| AO844A | 8-channel analog output module with voltage & current outputs |
| CI867 | Industrial Ethernet (TCP/IP) communication module |
