The Allen-Bradley 1769-OF8C is a Compact I/O analog output module designed for seamless integration with 1769 and select 1768 CompactLogix controllers, as well as the MicroLogix 1500 controller. It features eight single-ended current output channels configurable for 0-20 mA and 4-20 mA, supported by a 16-bit Digital to Analog Converter for high-precision signal conversion. With a fast conversion rate of 5ms and robust protection features such as overcurrent and overvoltage safeguards, the 1769-OF8C is ideal for driving various final control elements, including modulating control valves and variable frequency drives, within automatic control loops. This module includes convenient features such as a status LED, a removable terminal block with finger-safe protection, and channel-to-earth ground isolation, requiring a 24 Volts DC rated external power supply. Designed to operate effectively within a temperature range of 0 to 60 degrees Celsius, it maintains an output accuracy of ±0.35% at 25 degrees Celsius, ensuring reliable performance across demanding industrial environments.
Technical specifications for 1769-OF8C
Series
1769 Compact I/O
Module Type
Analog Output Module
Part Number/Catalog No.
1769-OF8C
Brand
Allen-Bradley
Manufacturer
Rockwell Automation
No. of Outputs
Eight (8) Current outputs
Output Current
0-20 mA / 4-20 mA
Output Current Range
0-21 mA; 3.2 mA - 21 mA
Resolution
16 bit
Conversion Rate (all channels) max.
5 ms
Overall Accuracy
±0.35% full scale at 25 °C
Open and Short-Circuit Protection
Yes
Maximum Short-Circuit Current
21 mA
Current draw
145 mA at 5VDC; 185 mA at 24V dc
Channel Diagnostics
Over- or under-range by bit reporting output wire broken or load resistance high by bit reporting
