Excellent PLC
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Schneider STBDDI3725 is a 12-channel digital input module designed for use within the Modicon STB distributed I/O system, part of the Modicon Telemecanique product family. Tailored for high-performance and space-constrained industrial applications, this module is engineered to acquire discrete input signals and transmit them to the programmable logic controller (PLC) or process automation system.
This digital input module is suitable for 24 V DC positive logic (sink) signals and is commonly used to monitor the status of devices such as push buttons, limit switches, and proximity sensors. Designed to operate reliably in demanding environments, the STBDDI3725 offers compact form factor, robust electrical isolation, and high input density.
Its seamless integration into the STB I/O island architecture allows it to function as part of a highly modular and distributed control system—ideal for both discrete and hybrid automation systems.
Product Specifications
| Parameter | Description |
|---|---|
| Product Type | Digital Input Module |
| Model Number | STBDDI3725 |
| Number of Channels | 12 |
| Input Voltage Type | DC |
| Rated Input Voltage | 24 V DC |
| Voltage Range | 19.2 to 30 V DC |
| Input Logic | Positive logic (sink input) |
| Input Impedance | 3.5 kΩ typical |
| Input Current (Nominal) | 3 mA @ 24 V DC |
| Module Power Consumption | 0.4 W |
| Response Time | <1 ms (typical) |
| Isolation Between Channels | No isolation between input channels |
| Isolation from Bus | Yes, 500 V RMS |
| Diagnostics | Channel status via STB system LED |
| Mounting | DIN rail mounted within STB I/O island |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Protection Index | IP20 |
| Dimensions (H x W x D) | 65.1 x 18.4 x 125 mm |
| Weight | 0.086 kg |
| Certifications | CE, UL, CSA, C-Tick |
| Communication Interface | STB Bus interface (via base or interface module) |
Applications
The STBDDI3725 module is widely used in various industrial applications where reliable discrete input detection is required. Key sectors include:
-
Machine Automation: Detecting mechanical actuator positions, pushbutton status, or relay feedback.
-
Material Handling: Monitoring conveyor belt sensors, gate limits, and packaging line detectors.
-
Building Automation: Status reading from doors, HVAC dampers, and alarm triggers.
-
Energy Management: Capturing dry-contact input signals from meters and breakers.
-
Water and Wastewater Systems: Reading pump status, float switches, or level indicators.
-
OEM Equipment Integration: Flexible input capabilities for integration into custom control panels or modular machines.
Product Advantages
-
High-Density Input: Offers 12 digital inputs in an extremely compact 12 mm wide footprint, maximizing cabinet space.
-
Modular Integration: Easily fits into Schneider’s distributed STB I/O system, enabling flexible system expansions.
-
Fast Response: With <1 ms response time, it ensures accurate signal capture from fast-switching field devices.
-
Low Power Consumption: Optimized for efficiency, consuming only 0.4 W, ideal for low-power designs.
-
Reliable Diagnostics: Integrated status LEDs simplify troubleshooting and maintenance.
-
Global Certifications: CE, UL, and CSA certifications ensure compliance in international projects.
-
Environmentally Robust: Designed for wide temperature and humidity conditions, suitable for field installations.
-
Plug-and-Play Compatibility: Seamlessly works with Schneider STB Network Interface Modules and power distribution systems.
Frequently Asked Questions (FAQ)
-
How many digital inputs does the STBDDI3725 support?
It supports 12 digital input channels. -
What is the voltage rating for input signals?
The module accepts 24 V DC positive logic signals. -
Does the module provide channel-to-channel isolation?
No, inputs are not isolated from each other, but they are isolated from the bus. -
Can it be mounted directly to a DIN rail?
Yes, it mounts on a DIN rail as part of an STB I/O island assembly. -
What kind of input devices can I connect to it?
You can connect dry contact switches, pushbuttons, sensors, and other 24 V DC devices. -
Is it compatible with Modicon PLCs?
Yes, it integrates seamlessly with Modicon STB and other Schneider controllers. -
What is the operating temperature range?
It can operate in temperatures from 0°C to 60°C. -
Is the module hot-swappable?
Modules in the STB system can be replaced with minimal disruption, depending on configuration. -
How are the diagnostics communicated?
Diagnostic and channel status are shown via LED indicators on the STB island. -
Does it support any network communication?
It communicates through the STB bus via a compatible network interface module (e.g., Ethernet, Modbus, Profibus).
Related Models (Same Series or Functionality)
| Model Number | Description |
|---|---|
| STBDDI3425 | 24 V DC Negative Logic Digital Input Module (12-ch) |
| STBDDO3705 | 24 V DC Positive Logic Digital Output Module (12-ch) |
| STBDDO3415 | 24 V DC Negative Logic Digital Output Module |
| STBACI1230 | AC Voltage Input Module |
| STBACO1230 | AC Voltage Output Module |
| STBDAI1330 | Analog Input Module, 4 Channels |
Popular Models from Schneider Electric (Same Brand)
| Model Number | Description |
|---|---|
| TM241CE24T | Modicon M241 Logic Controller, Ethernet |
| BMXDDI3202K | Modicon X80 Digital Input Module, 32 Channels |
| BMXNOC0401 | Ethernet/IP and Modbus/TCP Communication Module |
| ATV630D55N4 | Altivar Process Drive, 55 kW, 400 V |
| LXM32MD72N4 | Lexium 32 Servo Drive, 7.2 A |
| TSXPSY2600 | Power Supply Module for Modicon TSX PLC |
