Introduction

The Schneider STBACI1225K Analog Input Module is a dedicated signal acquisition solution within the Modicon STB distributed I/O family. Designed for industrial environments requiring reliable current measurement, it provides two 4...20 mA analogue input channels with 10-bit resolution for connecting field transmitters and process sensors.

With its modular architecture and complete installation kit, the STBACI1225K simplifies analogue integration in automation systems. It is widely suited for applications involving process monitoring, machine control, and distributed automation where accurate sensor data collection is essential.

Technical Specifications

Parameter	Specification
Brand	Schneider Electric
Model Number	STBACI1225K
Product Type	Analog Input Module Kit
Product Range	Modicon STB Distributed I/O
Module Type	Basic Analog Input Module
Input Type	Current Input
Analog Input Channels	2
Input Signal Range	4...20 mA
Resolution	10 bits
Input Filter	Single Low-Pass Filter 25 Hz
Response Time	5 ms
Update Time	10 ms
Input Impedance	≤300 Ohm
Maximum Input	25 mA / 50 V DC
Sensor Supply Current	100 mA per channel
Linearity Error	±0.2% FS
Accuracy Error	±0.5% FS at 25°C
Temperature Drift	±0.01%/°C
Insulation Voltage	1500 V for 1 minute
Mounting Type	STB Island Mounting Base
Protection Rating	IP20
Included Components	STBACI1225 Module, STBXBA1000 Base, STBXTS1100, STBXTS2100 Connectors
Dimensions (W × H × D)	Approx. 18.4 × 128.3 × 70 mm
Weight	Approx. 100 g

Recommended Companion Models

Model	Product Name
STBNIP2212	Schneider Modicon STB Ethernet Network Interface Module
STBPDT3100	Schneider Modicon STB Power Distribution Module
STBAVI1255K	Schneider Modicon STB Analog Voltage Input Module
STBACO0120K	Schneider Modicon STB Analog Output Module

Frequently Selected Alternatives

Model	Product Name
STBACI1230K	Schneider Modicon STB Analog Current Input Module
STBAVI1275K	Schneider Modicon STB Analog Voltage Input Module
BMXAMI0410	Schneider Modicon X80 Analog Input Module
NTSAMI0210K	Schneider Modicon Edge I/O Analog Input Module

Where It Excels in Industrial Use

• Industrial Process Monitoring
The STBACI1225K is designed for collecting 4...20 mA current signals from industrial sensors, making it suitable for monitoring pressure, flow, level, and other process variables in automation systems.

• Distributed I/O Control Architectures
As part of the Modicon STB distributed I/O solution, the module provides localized analogue signal acquisition for machine automation and process control installations.

• Sensor-Based Automation Applications
The module supports integration with current-output transmitters, helping engineers build reliable monitoring systems for equipment status, environmental conditions, and production processes.

• Compact Industrial Control Systems
Its modular STB design allows efficient installation in control cabinets where flexible analogue expansion and simplified maintenance are important.

Key Strengths at a Glance

• Dual 4...20 mA Analog Input Channels
The STBACI1225K provides two analogue current inputs with 10-bit resolution, enabling accurate acquisition of standard industrial transmitter signals.

• Complete Analog Input Kit Design
The kit includes the STBACI1225 module, mounting base, and terminal connectors, providing a convenient solution for Modicon STB island installations.

• Reliable Signal Processing Performance
With a 25 Hz low-pass input filter, 5 ms response time, and strong linearity characteristics, the module supports stable analogue measurement in industrial environments.

• Flexible STB System Integration
The module works within the Modicon STB distributed I/O platform, allowing engineers to expand automation systems with dedicated analogue signal acquisition.

Technical FAQs

1. What type of product is the Schneider STBACI1225K?
The Schneider STBACI1225K is a basic analogue input kit from the Modicon STB distributed I/O product family, designed for 4...20 mA current signal acquisition.

2. How many analogue inputs does the STBACI1225K provide?
The STBACI1225K provides two analogue current input channels.

3. What input signal type is supported by the STBACI1225K?
The module supports 4...20 mA current input signals commonly used with industrial transmitters and sensors.

4. What is the analogue resolution of the STBACI1225K?
The STBACI1225K provides 10-bit analogue input resolution for signal conversion.

5. Can the STBACI1225K measure voltage signals?
No, the STBACI1225K is designed specifically for 4...20 mA current input signals and is not a voltage input module.

6. What communication system does the STBACI1225K belong to?
The STBACI1225K belongs to the Schneider Electric Modicon STB distributed I/O system.

7. Does the STBACI1225K support sensor power supply?
Yes, each input channel can provide sensor supply current up to 100 mA for connected devices.

8. What type of filtering is used in the STBACI1225K?
The module uses a single low-pass input filter with a 25 Hz cutoff frequency to improve signal stability.

9. Can the STBACI1225K be hot swapped?
The module supports cold swapping functionality within compatible STB configurations.

10. Which software platform is used to configure STB systems with this module?
Compatible Modicon STB systems can be configured using Schneider Electric Advantys STB configuration software.

Look forward to your comments!Comment