The 6ES7323-1BL00-0AA0 is a mixed digital input/output module from Siemens’ SIMATIC S7-300 series, part of the SM 323 family. It integrates both digital input and output channels in a single module, offering a high-density solution for applications requiring simultaneous signal acquisition and device control—ideal for medium to large-scale automation systems where maximizing I/O capacity in limited space is critical.
Key Features & Specifications:
- Channel Configuration: Combines 32 digital input channels and 32 digital output channels in one compact module, providing extensive I/O capacity for complex setups needing both monitoring and control functions.
- Input Characteristics:
- Operates on 24 V DC (standard industrial low voltage), compatible with a wide range of sensors, switches, and contactors.
- Typical input current: ~7 mA per channel.
- Fast response time: ~3 ms, ensuring real-time detection of discrete signal changes (e.g., from proximity sensors or limit switches).
- Output Characteristics:
- Uses 24 V DC transistor outputs to control low-to-medium power DC devices.
- Maximum current per channel: 0.5 A, with a total module current limit of 8 A (distributed across all outputs) to prevent overloads.
- Rapid switching response: ~0.1 ms (turn-on) and ~0.5 ms (turn-off), supporting time-critical control tasks like activating solenoids or relays.
- Status Indicators: Individual LEDs for each input and output channel visually indicate activation (ON/OFF), while a module-level LED confirms power supply status. This simplifies quick diagnostics and operational checks in high-channel-count systems.
- Connection & Integration:
- Uses a 64-pin front connector with options for screw or spring-loaded terminals, ensuring secure, vibration-resistant wiring even with the high number of connections.
- Seamlessly integrates with the S7-300 backplane bus, enabling direct data exchange with the PLC CPU for synchronized input monitoring and output control.
- 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, automated production lines, or material handling systems.
Compatibility:
- Fully compatible with all SIMATIC S7-300 CPUs (e.g., 312, 314, 315, 317, 319) via the backplane bus, making it a flexible choice for scaling up I/O capacity in modular S7-300 systems.
- Works with standard 24 V DC industrial devices, including sensors, pushbuttons, and limit switches (inputs), as well as solenoid valves, relays, and indicator lights (outputs).
Applications:
Ideal for medium to large-scale automation scenarios requiring high-density mixed I/O, such as:
- Complex manufacturing lines needing to monitor multiple sensors (e.g., part presence, position) and control numerous actuators (e.g., grippers, conveyors).
- Logistics systems with extensive material handling equipment, where dozens of input signals (e.g., barcode scanners, photoelectric sensors) and output controls (e.g., motor starters, diverters) are required.
- Industrial machinery with integrated sub-systems (e.g., packaging lines with filling, sealing, and labeling stations), where consolidated I/O reduces wiring complexity.
This module combines high channel density with reliable performance, making it a cost-effective solution for simplifying system architecture in applications demanding extensive mixed digital I/O capabilities.
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