The 1756-OF6CI ControlLogix Analog Output Module from Rockwell Automation is a precision-engineered 6-channel isolated current output module designed for industrial process automation systems that require high signal integrity, stable 4–20 mA control, and channel-to-channel electrical isolation.
Built specifically for demanding analog control applications, the 1756-OF6CI is ideal for driving control valves, actuators, dampers, proportional controllers, and instrumentation loops in industries such as chemical processing, oil & gas, water treatment, pharmaceutical manufacturing, and energy systems.
Its isolated current-output architecture helps minimize signal interference and improves reliability in electrically noisy industrial environments.
Technical Specifications (Including Size & Weight)
| Parameter | Specification |
|---|---|
| Model | 1756-OF6CI |
| Series | ControlLogix Analog Output Modules |
| Module Type | 6-Channel Isolated Current Output Module |
| Number of Outputs | 6 analog current outputs |
| Output Signal Type | Current only |
| Output Range | 0–20 mA / 4–20 mA |
| Resolution | 16-bit |
| Accuracy | ±0.1% full scale typical |
| Channel Isolation | Individually isolated channels |
| Isolation Voltage | 250V continuous |
| Output Load Range | 0–750 Ω |
| Update Time | ~2 ms per channel |
| Calibration | Factory calibrated |
| Open Circuit Detection | Supported |
| Backplane Current (5.1V DC) | ~250 mA |
| Backplane Current (24V DC) | ~150 mA |
| Power Dissipation | ~5–6 W |
| Wiring Category | Shielded analog wiring recommended |
| Terminal Block | 1756-TBSH / 1756-TBNH |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5%–95% non-condensing |
| Weight | ~0.45–0.55 kg |
Module Dimensions
- Size (H × W × D): 145 × 55 × 140 mm
The module adopts the standard ControlLogix industrial chassis format while providing additional internal isolation circuitry for enhanced analog signal stability.
Recommended Related Models
The 1756-OF6CI is commonly integrated with:
- 1756-IF8 analog input module
- 1756-IF16 high-density analog input module
- 1756-OF4 analog output module
- 1756-L71 / L73 ControlLogix controllers
- 1756-EN2T EtherNet/IP communication modules
- 1756-PA75 ControlLogix power supply
Popular Allen-Bradley Analog Modules
Commonly deployed ControlLogix analog modules include:
- 1756-OF6CI isolated current output module
- 1756-OF4 analog voltage/current output module
- 1756-OF8 high-density analog output module
- 1756-IF8 analog input module
- 1756-IF16 multi-channel analog input module
These modules provide scalable analog control solutions for modern industrial systems.
