The Allen Bradley 1794-APBDPV1 is a FLEX I/O PROFIBUS DP-V1 communications adapter designed to connect distributed FLEX I/O racks to an industrial PROFIBUS network. It functions as a field-level gateway, translating PROFIBUS master requests into backplane communication for up to 8 FLEX I/O modules, enabling reliable and deterministic remote I/O control in complex automation systems.
Engineered for industrial environments where PROFIBUS remains widely deployed, this module is commonly used in manufacturing, process automation, and hybrid PLC architectures. It supports cyclic and acyclic data exchange (DP-V1), making it suitable for both real-time control and diagnostic communication.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model Number | 1794-APBDPV1 |
| Product Family | FLEX I/O |
| Module Type | PROFIBUS DP-V1 Communications Adapter |
| Communication Protocol | PROFIBUS DP-V1 |
| Communication Speed | 9.6 kbps to 12 Mbps (auto-baud) |
| Network Interface | 9-pin D-sub (PROFIBUS connector) |
| Input Voltage | 24 V DC nominal (19.2–31.2 V DC) |
| Input Current | Max approx. 385 mA |
| Inrush Current | 23 A for 2 ms |
| I/O Capacity | Up to 8 FLEX I/O modules |
| FlexBus Current | Max 640 mA |
| Power Dissipation | Approx. 4.2 W @ 19.2 V DC |
| Protocol Features | DP-V0 / DP-V1 (cyclic + acyclic data) |
| Mounting Type | DIN rail / FLEX I/O base system |
| Diagnostics | Status LEDs (network / module / fault) |
| Operating Temperature | 0°C to 55°C |
| Status | Discontinued (legacy support use only) |
Physical Dimensions & Weight
| Mechanical Property | Specification |
|---|---|
| Overall Dimensions (L × W × H) | Approx. 87 × 69 × 69 mm |
| Net Weight | Approx. 0.20–0.25 kg |
Recommended Related Models
The 1794-APBDPV1 is typically used in FLEX I/O PROFIBUS systems and often paired with compatible I/O modules and alternative communication adapters for migration projects.
| Related Model | Description |
|---|---|
| 1794-IB16 | Digital Input Module |
| 1794-OB16 | Digital Output Module |
| 1794-IE8 | Analog Input Module |
| 1794-OE4 | Analog Output Module |
| 1794-TB3 | Terminal Base Unit |
| 1794-TB2 | Terminal Base Unit |
| 1794-AENT | EtherNet/IP Adapter Module |
| 1794-AENTR | Redundant EtherNet/IP Adapter |
| 1794-ACN15 | ControlNet Adapter Module |
| 1756-DNB | DeviceNet Scanner Module |
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Allen Bradley automation systems are widely used in global industry for their robustness, long lifecycle design, and strong industrial communication ecosystem.
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