1769-OF4CI Allen-Bradley Isolated Current Module

1769-OF4CI Allen-Bradley CompactLogix Isolated Current Output Module

1769-OF4CI Allen-Bradley CompactLogix Isolated Current Output Module

Availability: 99 left in stock

Allen-Bradley 1769-OF4CI Compact I/O Analog Current Output Module Configured for high-precision analog loop control in CompactLogix and MicroLogix 1500 architectures,...

SKU: 1769-OF4CI

Manufacturer: Allen Bradley
Product No.: 1769-OF4CI
Product Type: Analog Output Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 180g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Allen-Bradley 1769-OF4CI Compact I/O Analog Current Output Module

Configured for high-precision analog loop control in CompactLogix and MicroLogix 1500 architectures, the Allen-Bradley 1769-OF4CI (1769-OF4CI Compact I/O Analog Current Output Module) provides direct physical/electrical execution across 1769 backplane platforms.

Suffix Breakdown & Model Matrix

Catalog Number	Output Channels	Signal Format	Electrical Isolation
1769-OF4CI	4 Isolated Channels	0-20 mA / 4-20 mA	Channel-to-Channel & Channel-to-Bus
1769-OF4VI	4 Isolated Channels	0-10 V / +/- 10 V	Channel-to-Channel & Channel-to-Bus
1769-OF8C	8 Non-Isolated Channels	0-20 mA / 4-20 mA	Channel-to-Bus Only

Hardware Specifications

Parameter	Specification
Model	1769-OF4CI
Brand	Allen-Bradley / Rockwell Automation
Origin	USA
Weight	0.18 kg
Dimensions	118 x 35 x 87 mm
Operating Temp	0 to 60 deg C
Power Consumption	24 VDC
Output Channels	4 isolated analog current channels
Output Signal Range	0 to 20 mA or 4 to 20 mA (software configurable)
Resolution	16-bit (or 15-bit plus sign)
Full Scale Accuracy	+/- 0.1%
Isolation Voltage	Channel-to-channel and channel-to-system
Bus Current Draw	120 mA at 5 VDC / 170 mA at 24 VDC
Maximum Load Impedance	500 ohm at 24 VDC

Compact I/O Backplane Bus and Deterministic Communications

The 1769-OF4CI interface communicates over the Compact I/O backplane bus to maintain deterministic data delivery from the system controller to the internal 16-bit digital-to-analog converters (DAC). By utilizing EtherNet/IP deterministic networks via 1769-AENTR adapters or local CompactLogix processors, the hardware updates current loop levels without variable scan delays. Individual channel galvanic isolation prevents ground loop interference across long field wiring runs while high I/O density scaling preserves cabinet rack space. Front-panel LEDs continuously monitor backplane bus communication status and local loop channel activity.

Frequently Asked Questions

Q: Does the 1769-OF4CI module support voltage outputs such as 0-10 VDC?

A: No. The 1769-OF4CI hardware drives current loops exclusively in 0-20 mA or 4-20 mA formats. Voltage output operations require dedicated hardware such as the 1769-OF4VI module.

Q: What are the backplane current draw requirements for power budget calculations?

A: The module draws 120 mA at 5 VDC and 170 mA at 24 VDC from the 1769 Compact I/O backplane bus, while external loop power supplies field-side current circuits.

Q: Can maintenance personnel remove field wiring without disconnecting individual signal conductors?

A: Yes. Technicians can detach the Removable Terminal Block (RTB) directly from the front housing, which allows module swap-out while keeping the field wiring intact.

Field Installation Guidelines

Mounting and Panel Preparation: Mechanics must secure the module onto standard DIN rail or panel mounts inside an IP54-rated industrial enclosure. Ensure a minimum vertical clearance of 50 mm above and below the module for natural thermal dissipation.
Shielding and Grounding Procedures: Installers must use twisted shielded pair cables for all analog current loops. Connect the drain wire directly to the functional earth (FE) bus bar at a single end to prevent ground loop currents from destabilizing DAC resolution.
Separation of Signal and Power Lines: Field technicians must route low-level analog current signals in separate wire ducts from high-voltage AC lines and VFD output power leads to suppress inductive noise coupling.
Terminal Block Engagement: Technicians must torque the Removable Terminal Block (RTB) retaining screws and terminal screws to the manufacturer-specified limits to preserve gas-tight electrical contacts during vibration.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Maintenance Manager, USA

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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

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Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.