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Allen Bradley PLC 3 1775L3A

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1775L3A

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The 1775L3A from Allen Bradley, a component within the PLC 3 series, functions as a main processor module. This unit operates within a supply voltage range of 5 to 15 VDC and incorporates a bit-slice microprocessor.

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Rockwell Disclaimer: The product is used surplus. DO 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 DO 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, DO 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. DO 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. DO Supply also makes no representations as to your right to install any such firmware on the product. DO 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.

Technical specifications for 1775L3A

ManufacturerAllen Bradley
Product TypeMain Processor Module
Product LinePLC 3
Part Number1775L3A
Weight1.00 lbs (0.45 kg)
Supply Voltage Range5 to 15 VDC
5V Backplane Load6 A at 5 VDC
15V Auxiliary Draw40 mA at 15 VDC
Module Form FactorSingle-Slot Chassis Mount
Processor TypeBit-Slice microprocessor
Expansion Bus Access4 x 50 pin Expansion Ports
Connector StyleBackplane Edge Connector
Minimum Operating Temperature0°C
Maximum Operating Temperature60°C
Relative Humidity5 to 95% (non-condensing)
Instruction Capability70+ ladder instructions
Compatible ChassisPLC-3 main and expansion racks
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The Allen Bradley 1775L3A is a main processor module designed for use in the PLC 3 series. It operates efficiently within a voltage supply range from 5 to 15 VDC. This unit has the capability to draw 6 A at 5 V for the backplane and requires an auxiliary current of 40 mA at 15 V. Intended for a single-slot chassis mount, it makes integration into existing systems straightforward.

Equipped with a bit-slice microprocessor, this module allows for advanced processing capabilities. For expansion purposes, it provides access to four 50-pin expansion ports, facilitating scalability as system needs evolve. The connector style utilized is a backplane edge connector, ensuring secure connections.

Regarding environmental parameters, the 1775L3A operates effectively between 0°C and 60°C and is rated for humidity conditions ranging from 5% to 95% without condensation. Instruction capabilities exceed 70 ladder instructions, which offer significant flexibility in programming. It is compatible with both PLC-3 main and expansion racks, allowing for diverse applications within control systems.

Revision Part #Also known as
1775L3A Ser A1775L3A/A, Series A, Rev A
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