6AG4140-6BC25-0KA0 SIEMENS Digital input module

Description

6AG4140-6BC25-0KA0 SIEMENS Digital input module

Product Dimensions：

Product Description

A Siemens Digital Input (DI) module acts as a bridge between field-level digital devices and the programmable logic controller (PLC). It monitors the status of connected devices—such as switches, sensors, and contacts—and translates their physical voltage states (on or off) into digital data. These modules are designed to handle the rugged conditions of industrial environments, providing electrical isolation and signal conditioning to protect the internal circuitry of the controller from external surges or noise.

Product Parameters

The technical characteristics of these modules define their compatibility and responsiveness within a system:

• Input Voltage: Typically designed for standard industrial levels, most commonly 24V DC, though AC variants are available for specific infrastructure needs.

• Number of Channels: High-density configurations allow for multiple inputs per module to save cabinet space.

• Input Delay: Adjustable filter times to debounce mechanical contacts and prevent false triggering due to electrical noise.

• Input Characteristic: Classification based on current-sinking or current-sourcing capabilities (Type 1, 2, or 3 according to international standards).

• Isolation: Galvanic isolation between the field-side electronics and the internal backplane bus to ensure system safety.

• Diagnostics: Features such as wire-break detection and short-circuit monitoring for high-availability requirements.

Product Advantages

• High Reliability: Built with robust electronic components that ensure consistent signal detection over millions of switching cycles.

• Simplified Troubleshooting: Integrated status LEDs for each channel allow maintenance personnel to verify field signals at a glance without using a multimeter.

• Modular Flexibility: Users can add as many or as few inputs as needed, allowing the system to scale precisely with the machinery’s requirements.

• High Density: Slim designs provide a large number of input points in a small physical footprint, reducing the overall size of the control cabinet.

• Fast Processing: High-speed variants are available for applications requiring extremely low latency and rapid response times.

Usage Precautions

• Voltage Polarity: Ensure correct wiring of the common potential; incorrect polarity in DC systems can prevent signal detection or damage the module.

• Signal Debouncing: Configure the input delay (filtering) appropriately to account for the mechanical “bounce” of physical switches or relays.

• External Fusing: While modules have internal protection, using external fuses for groups of inputs is recommended to prevent localized faults from affecting the entire module.

• Cable Routing: Keep signal cables separated from high-power motor cables to minimize electromagnetic interference that could cause “ghost” signals.

• Firmware Consistency: Ensure the hardware version is correctly identified in the engineering software to access all available diagnostic and filtering features.

Product Applications

• Machine Status Monitoring: Detecting the position of safety guards, limit switches, and mechanical levers.

• Operator Interface: Capturing commands from physical pushbuttons, selector switches, and emergency stop devices.

• Process Sensing: Receiving signals from binary sensors such as inductive proximity switches, capacitive sensors, and photoelectric beams.

• Sequence Control: Providing the feedback necessary for a PLC to progress through different stages of an automated manufacturing cycle.

• Interlocking: Monitoring the auxiliary contacts of motor starters or breakers to ensure a system is in a safe state before starting an operation.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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