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Allen Bradley PLC 5 1771-E4

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1771-E4

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The 1771-E4 module is a 12-bit analog output unit from Allen Bradley's PLC 5 series. With four single-ended output channels, it offers versatile signal types including voltage and current. The module is designed for various voltage ranges from -10 to 10V and current ranges from 4 to 20 mA.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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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 1771-E4

ManufacturerAllen Bradley
Product Type12-bit analog output module
Product LinePLC 5
Part Number1771-E4
Weight0.19 lbs (0.09 kg)
Output Channels4 single-ended
Signal TypeVoltage / Current
Voltage Ranges1 to 5V, 0 to 5V, -5 to 5V, 0 to 10V, -10 to 10V
Current Ranges4 to 20 mA, 0 to 20 mA, -20 to 20 mA
Channel SetupIndependent, no recalibration
Resolution12-bit / 3-digit BCD
Accuracy±0.1 % FS @ 25 °C
LinearityMonotonic
Response Time~1 ms / channel
Isolation1500 V RMS
Backplane Power165 mA @ +5 V
External Power±15 V DC, ~200 mA / rail
Overload Protection1-min short-circuit tolerant
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The 1771-E4 module from Allen Bradley's PLC 5 series functions as a 12-bit analog output module. This component includes four single-ended output channels, capable of generating signals in both voltage and current formats. Users can select from various voltage ranges: 1 to 5V, 0 to 5V, -5 to 5V, 0 to 10V, and -10 to 10V. Additionally, current ranges available include 4 to 20 mA, 0 to 20 mA, and -20 to 20 mA, enhancing flexibility in applications.

Channel setup allows for independent operations without the need for recalibration, simplifying integration into existing systems. The device delivers high precision with a resolution of 12 bits, corresponding to 3-digit BCD. Operational accuracy is within ±0.1 % FS at a standard temperature of 25 °C, ensuring reliable performance under specified conditions.

The response time is approximately 1 ms per channel, allowing for timely updates in dynamic applications. The module also features 1500 V RMS isolation, providing significant protection between the module and the controlled environment. Powering the module requires 165 mA from the backplane at +5 V, along with external power supplies of ±15 V DC at approximately 200 mA per rail. Furthermore, the overload protection allows tolerance to short circuits for up to a minute, enhancing durability and reliability within various operational environments.