The Allen-Bradley 1794-OF4I is a high-performance FLEX I/O analog output module designed for demanding process control applications requiring isolated current outputs. This module features four individually isolated channels, each capable of delivering 0-20 mA or 4-20 mA signals with 16-bit resolution, ensuring precise and reliable actuator or valve positioning. The 1794-OF4I integrates seamlessly into the Rockwell Automation FLEX I/O platform, supporting hot-swapping and direct connection to various communication adapters for distributed control architectures. Its robust design withstands harsh industrial environments, making it ideal for oil and gas, chemical processing, and water treatment systems.
| Parameter |
Specification |
| Product Family |
FLEX I/O |
| Model Number |
1794-OF4I |
| Module Type |
Analog Output Module (Isolated) |
| Number of Output Channels |
4 (individually isolated) |
| Output Signal Range |
0-20 mA or 4-20 mA (software configurable per channel) |
| Resolution |
16-bit DAC |
| Output Accuracy |
±0.1% of full scale (at 25°C) |
| Output Update Rate |
2.5 ms per module (all channels) |
| Isolation Voltage |
500V AC/DC between channels and backplane |
| Load Resistance (Current Output) |
0 to 750 Ω (max) |
| Power Supply Voltage |
5V DC from backplane (typical 200 mA) |
| Backplane Current Draw |
200 mA Standard Models 5V DC |
| Operating Temperature |
-20°C to +60°C (-4°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 |
5g Standard Models 10-500 Hz (per IEC 60068-2-6) |
| Shock Resistance |
30g (per IEC 60068-2-27) |
| Enclosure Type |
Open-style (requires panel or enclosure) |
| Terminal Base Compatibility |
1794-TB3, 1794-TB3S, 1794-TB3K, 1794-TB3SK |
| Communication Adapter |
Requires 1794-xxxx series adapter (e.g., 1794-AENT, 1794-ACNR) |
| Weight |
Approximately 0.23 kg (0.5 lbs) |
| Certifications |
CE, UL, CSA, ATEX (Zone 2), IECEx |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22