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Allen Bradley 1718 Ex I/O 1718-CF4H

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1718-CF4H

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The 1718-CF4H model from Allen Bradley is a configurable analog input/output module part of the 1718 Ex I/O series, tailored for flexible automation applications. It features four input channels and four output channels, all designed to facilitate precise analog signal management.

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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 1718-CF4H

ManufacturerAllen Bradley
Product TypeConfigurable Analog Input/Output Module
Product Line1718 Ex I/O
Part Number1718-CF4H
Weight5.00 lbs (2.27 kg)
UPC889508143873
Number of Input/Output Channels4 analog input channels and 4 analog output channels
Power Consumption3 Watts
Field Device Interface Type2-wire transmitter
Supply Connection and Internal Bus Connection TypeBackplane bus
Input Resistance15 ohms
Maximum Output Load750 ohms
Status IndicatorRed and green LED indicators
Communication ProtocolHART (Highway Addressable Remote Transducer) protocol
Power Dissipation2 Watts
Supply Voltage For The Analog Input Transmitter15 Volts at 20 milliamperes and 21.5 Volts at 4 milliamperes
Degree of ProtectionIP20 (NEMA Type 1)
Refresh TimeApproximately 100 milliseconds for 4 channels
Number of Occupied Slot1 slot
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Designed to function within Allen Bradley's 1718 Ex I/O product line, the 1718-CF4H module serves as a highly configurable analog I/O solution. This device accommodates both four analog input channels and four analog output channels, ensuring effective handling of signal processing in industrial settings. Powering the module requires a consumption of 3 watts, while it dissipates 2 watts during operation. The module is equipped with a 2-wire transmitter interface, providing essential connectivity for various field devices. Data exchange employs the HART communication protocol, enhancing interoperability among different components in process automation.

It connects to the backplane bus for both supply and internal connections, promoting seamless integration into existing systems. Input resistance is set at 15 ohms, which aids in stabilizing signal integrity. In terms of output, the module can support a maximum load of 750 ohms. Status indicators with red and green LEDs provide essential feedback on operation, allowing users to monitor performance intuitively.

When utilizing the power supply for the input transmitter, the module operates effectively at 15 Volts for 20 milliamperes and 21.5 Volts for a lower current of 4 milliamperes. The refresh time for processing signals across all four channels is approximately 100 milliseconds, ensuring timely data updates. With an IP20 (NEMA Type 1) degree of protection, the module is safeguarded against dust and touch, making it suitable for a range of environments. This compact module occupies a single slot in a chassis, making it an efficient addition to any control setup.