Allen-Bradley 1794-OW8 Output Module
The Allen-Bradley 1794-OW8 serves as the primary 1794-OW8 Digital Output Module utilized to execute discrete switching control across FLEX I/O platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-OW8 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.20 lbs (0.09 kg) |
| Dimensions | Standard FLEX I/O module profile |
| Operating Temp | Standard Allen-Bradley industrial operating range |
| Power Consumption | 5.5 W max |
| Module Type | Digital Output Module |
| Channels | 8 isolated relay outputs |
| Contact Type | Electromagnetic N.O. relay contacts |
| Output Voltage | 125 VDC / 265 VAC max |
| Contact Rating | 2.0 A max per channel |
| Ingress Protection | IP20 |
| Termination | Screw terminal connection on terminal base |
Backplane Bus Communication Velocity and Deterministic Switching
The Allen-Bradley 1794-OW8 incorporates 8 individually isolated electromechanical relay channels designed to switch AC or DC control loads up to 2 A per point without internal signal crosstalk. Communicating across high-velocity backplane bus architectures, the module executes deterministic output commands driven by EtherNet/IP, ControlNet, or Remote I/O adapters. The physical galvanic isolation between output contacts protects internal logic circuits from field-side voltage spikes, inductive transients, and ground potential differences during high-density I/O operations.
Frequently Asked Questions
Q: Can the 1794-OW8 module switch both AC and DC load voltages on different channels simultaneously?
A: Yes, because each of the 8 output channels features individually isolated contacts, separate AC (up to 265 VAC) or DC (up to 125 VDC) power sources can be wired across distinct channel groups without cross-channel interference.
Q: What terminal bases are required to mount and wire the 1794-OW8 FLEX I/O module?
A: The 1794-OW8 mounts onto standard FLEX I/O terminal base units (such as the 1794-TB2, 1794-TB3, or 1794-TB3S) featuring screw or spring-clamp terminations for field wiring connections.
Field Installation Guidelines
- Align the keying switch on the chosen FLEX I/O terminal base to position 9 before latching the 1794-OW8 module into place.
- Press the 1794-OW8 firmly onto the terminal base unit until the module locking mechanism snaps into the DIN rail assembly.
- Terminate field load conductors at the designated screw terminals, ensuring inductive loads (such as solenoid coils or motor starters) have suppression devices installed across the load terminals.
- Separate high-voltage AC output wiring from low-voltage DC communication cables inside panel wire ducts to mitigate electromagnetic interference.
Allen-Bradley 1794-OW8 Output Module
Allen-Bradley 1794-OW8 Output Module
The Allen-Bradley 1794-OW8 serves as the primary 1794-OW8 Digital Output Module utilized to execute discrete switching control across FLEX I/O platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1794-OW8 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.20 lbs (0.09 kg) |
| Dimensions | Standard FLEX I/O module profile |
| Operating Temp | Standard Allen-Bradley industrial operating range |
| Power Consumption | 5.5 W max |
| Module Type | Digital Output Module |
| Channels | 8 isolated relay outputs |
| Contact Type | Electromagnetic N.O. relay contacts |
| Output Voltage | 125 VDC / 265 VAC max |
| Contact Rating | 2.0 A max per channel |
| Ingress Protection | IP20 |
| Termination | Screw terminal connection on terminal base |
Backplane Bus Communication Velocity and Deterministic Switching
The Allen-Bradley 1794-OW8 incorporates 8 individually isolated electromechanical relay channels designed to switch AC or DC control loads up to 2 A per point without internal signal crosstalk. Communicating across high-velocity backplane bus architectures, the module executes deterministic output commands driven by EtherNet/IP, ControlNet, or Remote I/O adapters. The physical galvanic isolation between output contacts protects internal logic circuits from field-side voltage spikes, inductive transients, and ground potential differences during high-density I/O operations.
Frequently Asked Questions
Q: Can the 1794-OW8 module switch both AC and DC load voltages on different channels simultaneously?
A: Yes, because each of the 8 output channels features individually isolated contacts, separate AC (up to 265 VAC) or DC (up to 125 VDC) power sources can be wired across distinct channel groups without cross-channel interference.
Q: What terminal bases are required to mount and wire the 1794-OW8 FLEX I/O module?
A: The 1794-OW8 mounts onto standard FLEX I/O terminal base units (such as the 1794-TB2, 1794-TB3, or 1794-TB3S) featuring screw or spring-clamp terminations for field wiring connections.
Field Installation Guidelines
- Align the keying switch on the chosen FLEX I/O terminal base to position 9 before latching the 1794-OW8 module into place.
- Press the 1794-OW8 firmly onto the terminal base unit until the module locking mechanism snaps into the DIN rail assembly.
- Terminate field load conductors at the designated screw terminals, ensuring inductive loads (such as solenoid coils or motor starters) have suppression devices installed across the load terminals.
- Separate high-voltage AC output wiring from low-voltage DC communication cables inside panel wire ducts to mitigate electromagnetic interference.
