Product Introduction
The Schneider Electric STBAVI1255 Basic Analog Input Module is a reliable analog signal acquisition unit engineered for modular distributed I/O systems. Part of the Advantys STB portfolio, this module is built to convert analog measurements from field sensors into actionable data for Programmable Logic Controllers (PLCs) and automation controllers. With its straightforward design and dependable electrical performance, the STBAVI1255 is ideal for applications where basic analog input functionality is required without unnecessary complexity.
This module supports standard current and voltage inputs, enabling compatibility with a broad range of industrial transducers. Its compact, DIN‑rail mountable form factor makes installation simple while its sturdy construction ensures reliable operation in industrial environments.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Schneider Electric |
| Model Number | STBAVI1255 |
| Module Type | Basic Analog Input Module |
| Product Series | Advantys STB |
| Analog Input Channels | 2 Channels |
| Input Signal Types | Voltage (0–10 V), Current (0–20 mA / 4–20 mA) |
| Resolution | 12‑bit |
| Input Impedance | ≥100 kΩ (Voltage) |
| Measurement Accuracy | ±1 % FS typical |
| Response Time | ≤25 ms per Channel |
| Sampling Time | ~10 ms per Channel |
| Supply Voltage | 24 V DC |
| Power Consumption | ≤3 W |
| Protection Rating | IP20 |
| Mounting Method | DIN‑Rail |
| Operating Temperature | 0 °C to 55 °C |
| Dimensions (H × W × D) | 90 × 90 × 70 mm |
| Weight | Approx. 0.22 kg |
Industrial Applications
Machine Control & Monitoring
Used in automated machinery to capture analog sensor data such as temperature, pressure, and speed feedback for control algorithms.
Process Control Loops
Captures process signals in chemical, water treatment, and industrial processing systems to support basic monitoring and regulation.
HVAC & Building Automation
In environmental control systems, the module reads analog signals from sensors monitoring air quality, temperature, or humidity.
OEM Control Panels
Integrates into customized control solutions where basic analog input capabilities are needed in compact panel designs.
Key Advantages
Dual Analog Input Channels
Two analog inputs enable simultaneous data acquisition from multiple field sensors, reducing the need for separate single‑channel modules.
Flexible Signal Support
Accepts both current and voltage analog inputs, making it compatible with a wide variety of industrial sensors.
Compact and Easy to Install
Standard DIN‑rail mountable design simplifies panel layout and installation.
Cost‑Effective Performance
Engineered for essential analog input functionality, offering a balance of performance and value for basic automation needs.
Reliable Industrial Design
IP20 protection and stable electrical performance ensure consistent operation in indoor industrial environments.
Technical FAQs
1. How many analog input channels does the STBAVI1255 have?
It features 2 analog input channels for field signal acquisition.
2. What types of signals are supported?
The module supports voltage (0–10 V) and current (0–20 mA / 4–20 mA) inputs.
3. What resolution does the module offer?
The module uses 12‑bit resolution for converting analog signals.
4. What is the typical accuracy?
Measurement accuracy is approximately ±1 % of full scale.
5. What supply voltage is required?
It operates on a 24 V DC power supply.
6. Where is this module mounted?
Standard DIN‑rail mounting enables easy installation in control cabinets.
7. What is the sampling time per channel?
Each channel is sampled in approximately 10 ms.
8. Is this module suitable for outdoor use?
No; it is designed for indoor industrial environments (IP20).
9. What industries commonly use this module?
Process control, machine automation, HVAC, and OEM systems often deploy basic analog input modules.
10. Can this module read both current and voltage sensors?
Yes — it supports both current and voltage input signal types for flexible sensor connectivity.
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