The AS-B809-016 is a 16-channel high-voltage digital input module designed for legacy Modicon PLC systems from Schneider Electric.
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The AS-B809-016 is a 16-channel high-voltage digital input module designed for legacy Modicon PLC systems from Schneider Electric. Built for industrial reliability, this module enables PLC controllers to monitor ON/OFF signals from field devices operating at 230VAC.
Although discontinued, the AS-B809-016 remains widely used as a replacement and spare part in existing automation systems across manufacturing and process industries.
The AS-B809-016 is part of the Modicon 984 automation platform. Its primary role is to convert real-world electrical signals into PLC-readable data. The module receives digital signals from field equipment and transmits them to the PLC CPU for monitoring and control logic execution.
Typical connected devices include:
The module supports 16 discrete input channels, allowing multiple field signals to be monitored simultaneously. This helps reduce wiring complexity and saves valuable rack space.
Unlike low-voltage input cards, this module is optimized for high-voltage 230VAC environments, making it ideal for heavy industrial equipment and machinery.
With quick response times, the module ensures:
The AS-B809-016 fits directly into Modicon racks and communicates seamlessly with existing PLC hardware.
| Parameter | Specification |
|---|---|
| Model number | AS-B809-016 |
| Module type | Discrete input module |
| Input channels | 16 points |
| Rated input voltage | 230 VAC |
| Voltage range | 160–260 VAC |
| Frequency | 47–63 Hz |
| Input grouping | 2 groups (8 inputs each) |
| Response time | 7 ms ON / 18 ms OFF (typical) |
| Rack requirement | Single slot |
| Series compatibility | Modicon 984 |
The AS-B809-016 is commonly used in legacy automation systems across many industries:
Monitors sensors, switches, and machine states in automated production environments.
Collects signals from conveyors, sorters, and robotic handling equipment.
Ensures reliable signal acquisition from safety and control devices.
Used in control cabinets for monitoring valves, relays, and interlocks.
The Schneider AS-B809-016 is obsolete and no longer manufactured. However, it remains in high demand for:
Many facilities continue to operate Modicon PLC systems, making this module essential for long-term support.
The Schneider Electric AS-B809-016 is a trusted 16-point 230VAC digital input module built for Modicon PLC platforms. Even as a discontinued product, it remains a critical spare component for maintaining and extending the life of legacy industrial automation systems.
