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Allen Bradley PLC 3 1775-S4AB

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1775-S4AB

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The 1775-S4AB is an I/O scanner programmer interface from Allen Bradley’s PLC 3 series. It supports a current draw of 2.7 A when operating at 5 VDC. The device features five channels for effective input/output management and includes two self-test LEDs alongside four status indicators for each channel.

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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 1775-S4AB

ManufacturerAllen Bradley
Product TypeI/O Scanner Programmer Interface
Product LinePLC 3
Part Number1775-S4AB
Weight1.00 lbs (0.45 kg)
Current Rating at 5 VDC2.7 A
Current Rating at +15/-15 VDC20 mA
Number of Channels5 Channels
Number of Self Test LEDs2 LEDs
Number of Channel Status LEDs4 LEDs
Communication PortDB-25 Female D-Sub Connector
Min. Operating Temperature0 °C
Max. Operating Temperature60 °C
Min. Storage Temperature-40 °C
Max. Storage Temperature85 °C
Relative Humidity5 to 95% (non-condensing)
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The Allen Bradley 1775-S4AB serves as a reliable I/O scanner programmer interface, suited for use in control systems. It operates with a rating of 2.7 A at 5 VDC, effectively powering its integrated circuits. In addition to this, it has a current rating of 20 mA at +15/-15 VDC, which aids in its communication functions.

Designed to manage five distinct channels, this module allows for versatile input and output processing. The interface incorporates two self-test LEDs, enabling users to perform checks on its operational status. Additionally, it includes four channel status LEDs to provide immediate feedback about each channel's condition, thereby simplifying troubleshooting tasks.

Connectivity is facilitated through a DB-25 female D-Sub connector, ensuring straightforward integration with other systems. The 1775-S4AB is capable of operating between 0 °C and 60 °C, making it adaptable for various ambient conditions. For storage purposes, it withstands temperatures from -40 °C to 85 °C without affecting its performance.

Furthermore, this interface can function effectively within a relative humidity range of 5% to 95%, given that the environment is non-condensing. This feature allows for reliable operation in various industrial settings where humidity levels may fluctuate.

Revision Part #Also known as
1775-S4AB Ser A1775-S4AB/A, Series A, Rev A
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