1756-OF4 Allen-Bradley

Series#: AllenBradley

Product Details

1756-OF4 Allen-Bradley ControlLogix Analog Output Module – 4-channel isolated current/voltage output.
Supports 0-20 mA, 4-20 mA, ±10V, 0-10V, and 0-5V output ranges with 16-bit resolution.
Channel-to-channel isolation (1500V DC) ensures signal integrity in noisy industrial environments.
Hot-swappable under power (RIUP) – no system downtime required for module replacement.
Compatible with ControlLogix 1756 chassis and 1756-ENBT/EN2T communication modules.
Backed by Allen-Bradley’s rugged design for harsh plant-floor applications.
100% Genuine and New, rigorously inspected before international dispatch.

Specification

The Allen-Bradley 1756-OF4 is a high-performance analog output module designed for the ControlLogix platform, delivering precise 4-channel isolated output for critical process control applications. This module excels in converting digital signals from the controller into analog voltages or currents, ideal for driving actuators, valves, and transducers in oil & gas, water treatment, and manufacturing. With 16-bit resolution and per-channel configuration, the 1756-OF4 ensures accurate and repeatable control, while its removable terminal block (RTB) simplifies wiring and maintenance. Engineered for reliability in extreme temperatures and electrical noise, it supports remote I/O via ControlNet or EtherNet/IP networks, making it a cornerstone of modern distributed control systems (DCS).

Specification	Details
Model	1756-OF4 (Allen-Bradley)
Product Type	Analog Output Module – 4 Channels, Isolated
Output Ranges (Voltage)	±10V, 0-10V, 0-5V, ±5V (software selectable per channel)
Output Ranges (Current)	0-20 mA, 4-20 mA (software selectable per channel)
Resolution	16 bits (including sign bit for bipolar ranges)
Accuracy at 25°C (Voltage)	±0.05% of full scale
Accuracy at 25°C (Current)	±0.1% of full scale
Isolation	Channel-to-channel: 1500V DC; Channel-to-backplane: 1500V DC
Update Rate	1 ms per channel (typical, voltage mode); 2 ms per channel (current mode)
Load Impedance (Voltage)	Minimum 1 kΩ
Load Impedance (Current)	Maximum 600 Ω (for 20 mA output)
Overvoltage Protection	±30V continuous (voltage outputs)
Overcurrent Protection	Short-circuit protected (current outputs)
Power Consumption (from Backplane)	5.0W typical, 7.5W maximum
Current Draw (5V Backplane)	1.0A typical, 1.5A maximum
Current Draw (24V Backplane)	0.2A typical, 0.3A maximum
Operating Temperature	0°C to 60°C (32°F to 140°F)
Storage Temperature	-40°C to 85°C (-40°F to 185°F)
Relative Humidity	5% to 95% non-condensing
Vibration Resistance	5 g peak, 10-500 Hz (operating)
Shock Resistance	30 g peak (operating)
Module Location	1756 chassis (slots 0-17, depending on chassis size)
Communication	ControlLogix backplane (supports ControlNet, EtherNet/IP, DeviceNet via bridge)
Wiring System	Removable Terminal Block (RTB) – 1756-TBCH, 1756-TBS6H, or 1756-TBNH
LED Indicators	Status (module), Channel 0-3 (output active/fault)
Certifications	CE, UL, CSA, ATEX (Zone 2), IECEx (when installed in appropriate enclosure)
Weight	Approximately 0.35 kg (0.77 lbs)
Dimensions (H x W x D)	144 mm x 35 mm x 118 mm (5.67 in x 1.38 in x 4.65 in)
Warranty	Standard 2-year Allen-Bradley warranty (extended options available)