The 6ES7322-1FH00-0AA0 is a digital output module from Siemens’ SIMATIC S7-300 series, part of the SM 322 family. It is specifically designed to convert digital control signals from the S7-300 PLC into output signals for controlling AC-powered industrial devices, utilizing relay outputs to handle higher voltage loads commonly found in industrial environments.
Key Features & Specifications:
- Channel Configuration: Equipped with 16 digital output channels, enabling simultaneous control of multiple AC-powered devices in medium-scale automation setups.
- Output Characteristics:
- Uses relay outputs compatible with AC 120/230 V (wide-range voltage support), making it ideal for switching higher-voltage AC devices such as contactors, solenoid valves, or heating elements.
- Maximum current per channel: 2 A (resistive load), with a total module current limit of 8 A (for all channels combined), ensuring safe operation with medium-power AC loads.
- Relay switching capability: Suitable for both normally open (NO) and normally closed (NC) configurations, providing flexibility in circuit design.
- Status Indicators: Each channel features an LED to visually indicate output activation (ON/OFF), while a module-level LED confirms power supply status, simplifying quick status checks and troubleshooting.
- Connection & Integration:
- Uses a 40-pin front connector with screw terminals, ensuring secure and vibration-resistant wiring for AC connections in industrial settings.
- Integrates directly with the S7-300 backplane bus, enabling seamless communication with the PLC CPU for real-time transmission of control signals.
- Industrial Durability:
- Built to withstand harsh operating conditions, with an operating temperature range of 0°C to 60°C.
- Complies with international standards (e.g., CE, UL, IEC 61131-2) for resistance to electromagnetic interference (EMC), vibration, and shock, ensuring reliable performance in factory floors, process plants, or heavy machinery.
Compatibility:
- Fully compatible with all SIMATIC S7-300 CPUs (e.g., 312, 314, 315, 317) via the backplane bus, making it a flexible solution for expanding the output capabilities of modular S7-300 systems.
- Works with AC 120/230 V industrial devices such as AC contactors, solenoid valves, motor starters, or heating elements, supporting seamless integration into legacy or modern AC-based automation setups.
Applications:
Ideal for controlling AC-powered discrete devices in industrial automation scenarios, such as:
- Activating AC contactors to control motors in manufacturing lines.
- Operating solenoid valves in pneumatic or hydraulic systems powered by AC voltage.
- Controlling heating elements, fans, or lighting in process control environments.
This module combines a high channel count with robust relay-based switching for AC loads, making it a reliable choice for extending the digital output functionality of S7-300 PLCs in applications requiring compatibility with higher-voltage AC equipment.
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