Overview
The Allen Bradley 1794-APB is a Flex I/O PROFIBUS DP adapter module designed to connect distributed Flex I/O systems to a PROFIBUS DP network. It enables efficient and deterministic communication between remote I/O modules and PLC controllers, supporting scalable industrial automation and reliable field data exchange.
General Information
Part Number: 1794-APB
Brand: Allen-Bradley (Rockwell Automation)
Country of Origin: United States
Series: 1794 Flex I/O
Type: PROFIBUS DP Adapter Module
Mounting: DIN rail mounted Flex I/O adapter
Application: Industrial automation, remote I/O networking, PROFIBUS-based control systems
Power Specifications
Supply Voltage: 24 V DC nominal
Operating Power: Supplied via Flex I/O backplane
Field Power Requirement: External 24 V DC for module and network operation
Protection: Overvoltage and reverse polarity protection
Status Indication: LED indicators for power, network, and module status
Communication & Interface
Network Interface: PROFIBUS DP communication protocol
Control Integration: PLC-based distributed I/O system compatibility
Data Exchange: Cyclic deterministic I/O data transfer
Diagnostics: Network status monitoring, node diagnostics, fault detection and reporting
Wiring Interface: PROFIBUS DP RS-485 communication interface
Environmental
Operating Temperature: 0 to +55 °C
Storage Temperature: −40 to +85 °C
Humidity: 5% to 95% non-condensing
Vibration Resistance: Industrial control cabinet environment rated
Protection Class: Industrial enclosure suitable for panel installation
Dimensions & Weight
Dimensions: 87 x 68 x 69 mm
Weight: 0.2 kg
Reliable Field Connectivity — Built for Stable Industrial Performance!