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The 1794-APBDPV1 is a FLEX I/O PROFIBUS DP-V1 communication adapter module used in distributed industrial automation systems. It acts as a bridge between a FLEX I/O backplane and a PROFIBUS DP master system (PLC or scanner), enabling real-time and diagnostic-enhanced field communication.
Compared with earlier DP versions, the DP-V1 protocol adds enhanced diagnostics, parameter access, and acyclic messaging capability, making the system more flexible and easier to maintain.
The module supports up to 8 FLEX I/O modules per node, making it suitable for modular distributed control architectures.
The FLEX I/O system is designed for scalable remote I/O integration in industrial automation environments.
The 1794-APBDPV1 functions as a PROFIBUS DP-V1 slave adapter module.
Core functions include:
It is widely used in systems requiring both high-speed fieldbus communication and advanced diagnostic capabilities.
| Parameter | Value |
|---|---|
| Communication Protocol | PROFIBUS DP-V1 |
| Network Speed | up to 12 Mbps |
| Network Type | Master/Slave fieldbus |
| Max I/O Modules | up to 8 FLEX I/O modules |
| Cable Type | RS-485 shielded twisted pair |
| Connector Type | 9-pin D-sub PROFIBUS connector |
| Data Exchange | Cyclic + Acyclic (DP-V1) |
| Parameter | Value |
|---|---|
| Input Voltage Range | 19.2–31.2 V DC |
| Nominal Voltage | 24 V DC |
| Input Current | 385 mA max |
| Inrush Current | 23 A for 2 ms |
| FlexBus Output Current | up to 640 mA @ 5 V DC |
| Power Dissipation | ~4.2 W typical |
| Isolation Voltage | 50 V continuous (basic insulation) |
| Parameter | Value |
|---|---|
| System Capacity | up to 8 FLEX I/O modules |
| Node Type | PROFIBUS DP-V1 slave adapter |
| Configuration Tool | PLC engineering software |
| Diagnostic Function | LED + DP-V1 diagnostics |
| Compatibility | FLEX I/O terminal base system |
| Parameter | Value |
|---|---|
| Height | 87 mm |
| Width | 69 mm |
| Depth | 69 mm |
| Mounting Type | DIN rail / panel mount |
| Weight | 0.144 kg – 1.32 kg (typical ~0.14–0.28 kg depending on packaging) |
| Form Factor | Single-slot communication adapter |
| Parameter | Value |
|---|---|
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5%–95% non-condensing |
| Vibration Resistance | Industrial IEC standard |
| Shock Resistance | up to 30G |
The 1794-APBDPV1 is used in industrial systems requiring PROFIBUS DP communication with enhanced diagnostics.
Provides acyclic messaging for deeper device diagnostics and maintenance.
Supports up to 12 Mbps PROFIBUS transmission speed.
Supports up to 8 FLEX I/O modules per node.
Designed for noisy industrial environments with reliable RS-485 communication.
Compatible with widely used PROFIBUS PLC systems.
Identification & Maintenance functions improve troubleshooting efficiency.
| Model | Description | Key Parameters |
|---|---|---|
| 1794-APB | Standard PROFIBUS DP adapter | DP-0 protocol version |
| 1794-APBDPV1XT | Extended temperature DP-V1 adapter | Harsh environment support |
| 1794-AENTR | EtherNet/IP dual-port adapter | Industrial Ethernet communication |
| 1794-AENT | EtherNet/IP adapter | Single-port Ethernet |
| 1794-ADN | DeviceNet adapter | CAN-based fieldbus |
| Model | Type | Key Parameters |
|---|---|---|
| 1756-EN2T | Ethernet communication module | ControlLogix Ethernet interface |
| 1756-IB16 | Digital input module | 16-channel 24V DC input |
| 1756-OB16E | Digital output module | Electronic switching output |
| 1769-L33ER | PLC controller | CompactLogix CPU with Ethernet |
| 1769-PA4 | Power supply module | Industrial AC/DC power unit |
The 1794-APBDPV1 is a PROFIBUS DP-V1 FLEX I/O adapter designed for distributed industrial automation systems requiring both high-speed communication and advanced diagnostic capabilities.
Its DP-V1 protocol support, modular architecture, and stable industrial design make it a widely used solution in modern factory automation networks.