S5 WF707 6FM1707-3AA10 SIEMENS Digital input module

Description

S5 WF707 6FM1707-3AA10 SIEMENS Digital input module

Product Dimensions：

Product Description

A digital input module detects the status of external binary devices—such as switches, sensors, and contacts—and translates these into digital data (0 or 1). These modules provide a critical isolation layer between the high-voltage or electrically noisy environment of the factory floor and the sensitive low-voltage electronics of the PLC. By utilizing optocouplers, they ensure that electrical surges or faults in the field do not damage the central processing unit. They are available in various densities, ranging from high-performance modules for rapid signal detection to high-density modules for space-saving installations.

Product Parameters

While specific technical ratings depend on the hardware generation, digital input modules generally adhere to the following parameters:

• Input Voltage: Standard options include 24V DC (sinking/sourcing) and 120/230V AC interfaces.

• Number of Channels: Typically available in configurations of 8, 16, 32, or 64 channels per module.

• Input Filtering/Delay: Configurable input delay times to suppress contact bounce and filter out electrical noise.

• Isolation: Galvanic isolation between the field-side inputs and the backplane bus.

• Input Characteristics: Compliance with IEC 61131-2 standards for Type 1, Type 2, or Type 3 input characteristics.

• Diagnostic Capabilities: Support for wire-break detection and short-circuit monitoring in specialized high-end variants.

Product Advantages

• Reliable Signal Processing: Advanced filtering techniques ensure that only valid state changes are recorded, preventing false triggers in noisy environments.

• High Density: Modular designs allow for a large number of inputs in a very small footprint, optimizing control cabinet space.

• Diagnostics and Maintenance: Integrated LEDs provide immediate visual feedback on the status of each input, significantly reducing commissioning and troubleshooting time.

• Hot Swapping: Many modules support “pull-and-plug” functionality, allowing for module replacement without shutting down the entire system.

• Integration: Full compatibility with the Siemens TIA Portal environment ensures fast hardware configuration and easy parameter assignment.

Important Considerations

• Sinking vs. Sourcing: It is vital to match the module’s wiring logic (M-reading or L-reading) with the output type of the field sensors to ensure proper circuit completion.

• Cable Lengths: For long cable runs, designers must account for voltage drops and potential induced voltages that could trigger a “false high” signal.

• Power Consumption: The cumulative current draw from the module’s internal electronics and the field sensors must be within the power budget of the system power supply.

• Environmental Protection: Modules should be installed in enclosures that meet the required IP rating for the specific industrial environment to prevent dust or moisture ingress.

Product Applications

• Machine State Monitoring: Detecting the position of mechanical components via limit switches or proximity sensors.

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

• Process Sequencing: Providing feedback from pressure switches, level sensors, and thermostats to trigger the next stage of an automated sequence.

• Safety Monitoring: Interfacing with safety-related sensors to ensure that machine guards are closed before operation.

• Counting Tasks: Utilizing high-speed input channels to count pulses from flow meters or encoders for positioning and measurement.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Please make an inquiry for more models：