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AX81

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The Mitsubishi AX81 functions as a Digital input/Output (I/O) module in the MELSEC-A series, designed to enhance the operational capabilities of Programmable Logic Controllers (PLCs). The device has been carefully designed to accommodate 32 digital inputs that function at a voltage of 24 Volts DC. This allows for the effective reception of diverse binary signals, which can be used for control applications. The input/output (I/O) unit functions within a voltage range of 12–24 Volts DC and maintains a low OFF leakage current of 0.1 mA to prevent any unintended current flow when not in operation. The AX81 demonstrates its practicality by featuring a transistor output with sink functionality, enhancing its suitability for a diverse range of industrial systems. The AX81 is characterized by its impressive response time of 10 milliseconds. The high speed of response enables immediate processing and control operations, which enhances the overall efficiency of the system. The system also supports the capability to handle 8 points per common end, facilitating structured signal processing within the Programmable Logic Controller (PLC) network. By integrating a surge absorber, the AX81 efficiently reduces the adverse effects caused by abrupt voltage spikes, ensuring the protection of the device itself as well as the overall system's integrity. The unit offers a high level of flexibility and versatility in managing various control scenarios, thanks to its 32 output points. The Mitsubishi AX81 is a DC digital input unit designed for PLCs, offering advanced technology to enable reliable and efficient control in diverse automation processes. The device's compact form factor, rapid response time, and comprehensive range of features contribute to its significant utility within industrial control systems.

Technical Specifications for AX81

TypeI/O unit
CompatibilityProgrammable Logic Controllers (PLCs)
SeriesMELSEC-A series
FunctionsDC digital input unit
Digital inputs32 x digital inputs (24 Volts DC; Source)
Voltage12/24 Volts DC
Current4/10mA
Response time10ms
Number of points/end8 points / a common end
UtilityNegative
Terminal station38-point
OFF leakage current0.1mA
Output typeTransistor output (type sink)
Surge absorberYes
Output points32 points

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Rockwell Disclaimer: The product is used surplus. PDF Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because PDF Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, PDF Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. PDF Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. PDF Supply also makes no representations as to your right to install any such firmware on the product. PDF Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.