PLC | Siemens | 6ES7 321-1FH00-0AA0 6ES7321-1FH00-0AA0 SIMATIC S7-300 digital input

Product Description: Siemens 6ES7321-1FH00-0AA0

The Siemens 6ES7321-1FH00-0AA0 is a 16-channel digital input module designed for use with the SIMATIC S7-300 PLC system. It features opto-isolated inputs that provide electrical isolation between the input circuits and the backplane of the PLC. This design ensures protection against electrical noise and voltage spikes. The module supports 24 V DC input voltage and can be used for a wide range of industrial applications, including factory automation, process control, and building systems.

Key Features

• Number of Inputs: 16 digital inputs
• Input Voltage: 24 V DC
• Input Current: Approximately 8 mA per input
• Input Type: PNP (Source configuration)
• Isolation: Optocoupler isolation for each channel, ensuring electrical separation from the backplane and system components
• Mounting: Compatible with the SIMATIC S7-300 backplane bus
• LED Indicators: Each channel has an LED for status indication, providing real-time feedback for diagnostics
• Dimensions: Compact design for easy installation in control panels
• Diagnostic Indicators: Built-in diagnostic features for quick fault detection, such as wire break and short-circuit detection

Technical Specifications

• Product Type: Digital Input Module
• Part Number: 6ES7321-1FH00-0AA0
• Number of Inputs: 16
• Input Voltage: 24 V DC
• Input Current: 8 mA per input
• Input Type: PNP (Source)
• Isolation: Optocoupler isolation
• Mounting: SIMATIC S7-300 backplane bus
• LED Indicators: Yes (for each channel)
• Dimensions (W x H x D): 40 mm x 125 mm x 130 mm
• Weight: Approx. 250 g

Application Areas

• Factory Automation: Ideal for monitoring digital signals from sensors, switches, and other field devices in manufacturing environments.
• Process Control: Used for controlling and monitoring digital inputs in process industries.
• Building Automation: Suitable for integration in building control systems such as lighting, security, and HVAC.
• General Industrial Use: Can be applied in a wide range of industrial automation applications requiring digital input monitoring.

Advantages

• Electrical Isolation: Protects the PLC and other components from electrical noise and voltage spikes, ensuring system stability.
• Reliable Performance: Designed for use in industrial environments with long-term reliability and minimal maintenance.
• Ease of Integration: Simple integration with the SIMATIC S7-300 system via the backplane bus.
• Clear Diagnostics: LED indicators provide easy troubleshooting for monitoring input status and identifying faults.