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Product Model: ABB SD834
Part Number: 3BSC610067R1
Brand: ABB
Series: SD Digital Signal Conditioning & Processor Modules
Product Type: Digital Signal Conditioner / Converter
Category: Industrial Signal Processing and Measurement Interface
The ABB SD834 is an advanced industrial digital signal conditioning module designed to convert, filter, scale, linearize, and isolate raw analog field signals into reliable digital outputs for use in modern automation systems such as PLCs, distributed control systems (DCS), data acquisition (DAQ) hardware, and operator interfaces.
The ABB SD834 3BSC610067R1 is engineered for demanding industrial environments where precise and reliable analog‑to‑digital signal conversion is required. It accepts raw analog signals from a wide variety of sensors — including voltage sources, current loops, thermocouples, and resistance temperature detectors (RTDs) — and processes them using high‑resolution conversion and digital signal processing techniques.
This module performs multiple key functions:
High‑resolution analog‑to‑digital conversion
Digital noise filtering and suppression
Sensor linearization and scaling
Galvanic isolation between input and output
Stable digital output generation
Through these functions, the SD834 ensures that the automation system receives clean, accurate, and stable digital signals, improving control performance and measurement reliability. The module supports continuous industrial operation and is suitable for use in control cabinets, machine control panels, and distributed automation installations due to its compact DIN‑rail or rack‑mountable form factor.
The SD834 integrates analog field signals seamlessly into digital automation architectures, enhancing performance in complex control and monitoring ecosystems.
| Parameter | Specification |
|---|---|
| Model | SD834 |
| Part Number | 3BSC610067R1 |
| Series | SD Digital Signal Conditioning & Processor |
| Product Type | Digital Signal Conditioner / Converter |
| Supported Input Types | Voltage, Current, Thermocouple, RTD |
| Output Format | Digitally conditioned outputs for PLC/DCS/DAQ |
| A/D Conversion | High‑resolution digital conversion |
| Input Impedance | High input impedance (configuration‑dependent) |
| Output Interface | Digital signals for controllers and DAQ |
| Galvanic Isolation | Full isolation between input and output |
| Accuracy | ±0.1 % of full scale (typical) |
| Response Time | < 100 ms |
| Supply Voltage | 24 V DC |
| Power Consumption | < 8 W |
| Operating Temperature Range | –10 °C to +55 °C |
| Storage Temperature Range | –20 °C to +70 °C |
| Relative Humidity | 5 % to 95 % non‑condensing |
| Protection Rating | IP20 |
| Mounting Type | DIN‑Rail or Rack Mount |
| Connection Method | Screw / Plug‑in Terminals |
| Dimensions (W × H × D) | 45 × 120 × 110 mm |
| Weight (kg) | Approx. 0.50 kg |
The SD834 is used in industrial automation and control systems where analog sensor signals must be precisely processed before being used by digital automation equipment. Its applications span multiple sectors:
Typical Application Scenarios Include:
• Temperature Signal Conditioning: Processing thermocouples and RTDs for precise real‑time monitoring.
• Process Variable Conditioning: Handling signals from pressure, level, and flow transmitters for control loops.
• Front‑End Processing for Automation Systems: Preparing analog data for PLCs and DCS systems.
• Data Acquisition and Monitoring: Reliable data conversion for logging and historian solutions.
• Noise‑Resilient Operation: Field signal stability in electrically noisy environments.
• Machine Automation: Accurate feedback for motion control and process automation.
• Environmental Monitoring: Conditioning field sensor data for monitoring systems.
• Utility and Infrastructure Automation: Stable data delivery for power, water treatment, and facility monitoring systems.
By transforming raw analog signals into precise digital representations, the SD834 enhances automation accuracy, improves process stability, and supports reliable system diagnostics.
The SD834 performs high‑resolution analog‑to‑digital conversion with advanced digital filters, improving signal fidelity and reducing noise.
Supports many analog input types including voltage, current, thermocouples, and RTDs, making it suitable for diverse sensor technologies.
Input and output isolation reduces electrical noise and prevents ground loop interference, ensuring reliable signal integrity.
Provides conditioned digital outputs that integrate directly with PLCs, DCS systems, and data acquisition hardware, simplifying system design.
Programmable digital filters and response characteristics allow tuning to specific application needs.
Designed for continuous operation in industrial environments with broad temperature and humidity tolerances.
DIN‑rail and rack mount options provide flexibility for installation in different automation topologies.
Screw and plug‑in terminals allow straightforward wiring, simplifying installation and maintenance.
Below are five related models in the SD series or closely associated product families that provide similar signal conditioning and processing functions.
| Model | Supported Inputs | Output Type | Supply Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| SD800 | Analog sensor inputs | Digital conditioned output | 24 V DC | 45×120×110 | 0.40 kg |
| SD810 | Voltage / Current | Digital output | 24 V DC | 45×120×110 | 0.41 kg |
| SD812 | Voltage/Current/Thermocouple/RTD | Digital conditioned output | 24 V DC | 45×120×110 | 0.42 kg |
| SD821 | Voltage/Current/Thermocouple/RTD | Digital conditioned output | 24 V DC | 45×120×110 | 0.45 kg |
| SD834 | Voltage/Current/Thermocouple/RTD | Digital conditioned output | 24 V DC | 45×120×110 | 0.50 kg |
Below are five widely used automation hardware modules from ABB that work together with signal conditioning devices such as the SD834:
| Model | Device Type | Supply Voltage | Dimensions (mm) | Weight (kg) | Application |
|---|---|---|---|---|---|
| AC800M | Modular Controller | 24 V DC | 140×180×120 | 1.2 kg | Core automation CPU |
| PM856 | Processor Module | 24 V DC | 120×150×90 | 0.9 kg | Control logic processor |
| CI870 | Communication Interface | 24 V DC | 120×150×90 | 0.8 kg | Fieldbus / network interface |
| AI820 | Analog Input Module | 24 V DC | 120×150×80 | 0.6 kg | Multi‑channel analog data |
| DI820 | Digital Input Module | 24 V DC | 120×150×80 | 0.6 kg | Digital signal acquisition |
Q1: What is the main purpose of the SD834?
A: The SD834 is designed to convert, filter, scale, and digitize analog sensor signals for processing by digital automation systems.
Q2: What types of analog inputs does SD834 accept?
A: It accepts voltage, current loops, thermocouple, and RTD inputs.
Q3: What type of output does this module provide?
A: It provides digitally conditioned signals suitable for PLCs, distributed control systems, and data acquisition units.
Q4: What power supply does the SD834 require?
A: The module operates on a 24 V DC industrial power supply.
Q5: How much does the SD834 weigh?
A: The approximate weight is 0.50 kg.
Q6: What are the physical dimensions of this unit?
A: The SD834’s dimensions are approximately 45 × 120 × 110 mm.
Q7: Where is the SD834 typically installed?
A: It is commonly mounted on DIN rails or in racks inside control cabinets.
Q8: Why is galvanic isolation important in signal conditioning?
A: Galvanic isolation reduces electrical noise and prevents ground loop interference, improving signal integrity.
Q9: In what industries is the SD834 commonly used?
A: It is used in manufacturing automation, utilities, process control, chemical plants, and power systems.
Q10: Can the SD834 operate continuously in industrial environments?
A: Yes, it is built for stable, long‑term operation under typical industrial conditions.