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Allen Bradley CompactLogix 1769-OF8C
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1769-OF8C

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The 1769-OF8C output module is an Allen-Bradley/Rockwell Automation output module from the CompactLogix series of I/O modules. It has 8 output channels that are all current outputs. The 1769-OF8C output module's output channels can operate at 0 to 20 milliamps or at 4 to 20 milliamps. It does not have an enclosure and so it should not be used outdoors and it may need to be installed in an enclosure in harsh indoor environments. The 1769-OF8C output module can operate safely at 32 to 140 degrees Fahrenheit or 0 to 60 degrees Celsius.

Ships Mon, May 19.
In Stock
Ships from Raleigh, NC
2 Year DO Supply Warranty
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 our products come with DO Supply's 2-year warranty.
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Technical specifications for 1769-OF8C

Series1769 Compact I/O
Module TypeAnalog Output Module
Part Number/Catalog No.1769-OF8C
BrandAllen-Bradley
ManufacturerRockwell Automation
No. of OutputsEight (8) Current outputs
Output Current0-20 mA / 4-20 mA
Output Current Range0-21 mA; 3.2 mA - 21 mA
Resolution16 bit
Conversion Rate (all channels) max.5 ms
Overall Accuracy±0.35% full scale at 25°C
Open and Short-Circuit ProtectionYes
Maximum Short-Circuit Current21 mA
Current draw145 mA at 5VDC; 185 mA at 24V dc
Channel DiagnosticsOver- or under-range by bit reporting output wire broken or load resistance high by bit reporting
EnclosureNone
Product LineCompactLogix
Input TypeOutput Current
Communication Cable 8 Point
Shipping Weight2 pounds
Shipping Dimensions8 x 8 x 5 inches
Converter TypeDelta Sigma
Outputs8 single-ended
Replacement Door Part Number1769-RD
Wire TypeCopper-90 degrees
Solid Wire Size22 to 14 AWG
Stranded Wire Size22 to 16 AWG
Heat dissipation2.69 Watts
UPC10662468861622
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.

The Allen-Bradley 1769-OF8C is Compact I/O module. This module is compatible for use with the 1769 and some 1768 CompactLogix controllers as well as with the MicroLogix 1500 controllers. This module is an analog output module, typically used for driving Final Control Elements (FCE) of a control loop as well as deliver signals to receiving and measuring elements.

The 1769-OF8C mainly features Eight (8) Single-ended current output channels, configurable for 0-20 mA and 4-20 mA. It features 16-bit Digital to Analog Converter (DAC), with specific resolution of 15.59 bits, 0.323 µA/bit for 4-20 mA and 15.91 bits, 0.323 µA/bit for 0-20 mA. It has a conversion rate of 5ms on all channels and step response to 63% output of less than 2.9 ms. The analog output range is 0-21 mA and 3.2-21 mA.

Typical Final Control Elements (FCE) that can be driven by the 1769-OF8C are Modulating Control Valves, Variable Frequency Drives (VFD), Positioners and other devices. To be used in automatic control loop, this module may be integrated to a Proportional + Integral + Derivative (PID) controller that is embedded within the processor. Compatible receiving and measuring elements that can receive signal from this device are panel meters, data loggers, signal splitters and other similar type of devices.

The 1769-OF8C is a single width module, that can be installed along the 1769 and 1768 CompactLogix assembly as local I/O and part of the expansion I/O rack. It may also be used with MicroLogix 1500 controller.

The Allen-Bradley 1769-OF8C can support up to 8 channels of simultaneous analog current output. On the front side of the module, there is one LED indicator that energizes Green when the module is not experiencing problems. This status LED light can warn the users if it detects an open-loop condition. The module also has overcurrent and overvoltage protection features. The 1769-OF8C Compact Logix series current output module requires a 24 Volts DC rated external power supply and it includes channel-to-earth ground isolation. All of the outputs have a 16-bit resolution. The 1769-OF8C output module includes an integral removable terminal block with finger-safe protection for the wiring to the actuators. This terminal block can be found behind a door at the front of the output module. The most common way of wiring this module is by routing it from beneath the module to the output terminals. The 1769-OF8C also has a replacement door kit and it uses a solid copper wire with a 22 by 14 AWG size. The output impedance for the 1769-OF8C is more than 1 Ohm and it is protected from short-circuiting. The module is built to operate at a temperature range of 0 to 60 degrees Celsius. Its accuracy at 25 degrees Celsius is ±0.35% of the full scale. The 1769-OF8C is shipped with an approximate weight of 0.28 kilograms, and it measures 4.65 inches x 1.38 inches x 3.43 inches.

Revision Part #Also known as
1769-OF8C Ser A1769-OF8C/A, Series A, Rev A
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