Bridge Your PROFIBUS Network with the Allen-Bradley 1734-APB
The 1734-APB is a critical PROFIBUS DP Network Adapter within the POINT I/O series.
This module acts as a master on the PointBus backplane.
It simultaneously serves as a slave on the PROFIBUS network.
This design allows seamless data exchange between your system components.
Engineers use this adapter to connect up to 63 I/O modules.
It effectively integrates distributed control into existing fieldbus architectures.
Why Choose the 1734-APB for Your Industrial Network?
This adapter solves the common problem of network incompatibility.
It converts standard field power into reliable logic power.
The module accepts a 24 Volts DC nominal input voltage.
It then delivers a stable 5 Volts supply to the PointBus.
This conversion powers your connected POINT I/O modules efficiently.
The unit provides reverse polarity protection for input overvoltage.
This feature safeguards your system against common wiring mistakes.
Product Procurement & Technical Alignment for Engineers
The 1734-APB supports a wide input range from 10 to 28.8 Volts DC.
This flexibility ensures stable operation during power fluctuations.
Its inrush current reaches a maximum of 6 Amps for 10 milliseconds.
The adapter draws 1000 milliamps from the POINTBus.
Total power consumption is a modest 8 Watts.
Power dissipation is just 2.8 Watts at 28.8 Volts DC.
These specs make it ideal for dense cabinet installations.
This adapter can power up to 14 I/O modules with field power.
It uses a maximum of 10 Amps for that field side supply.
The module itself requires only 75mA current draw to operate.
You can expand your system with a maximum of 63 modules.
This scalability helps procurement managers plan for future growth.
It fits perfectly into a centralized or distributed control strategy.
Step-by-Step Installation Guide for the PROFI Adapter
Always mount this adapter on the left side of a 1734 system.
This position is critical for proper PointBus communication flow.
First, ensure your power supply meets CE Low Voltage Directives.
Use a SELV, PELV, or NE Class 2 rated power source.
Connect the 24 Volts DC field power to the adapter.
The module then converts this to 5 Volts for the backplane.
The 1734-APB provides a PointBus output current of 1 Amp maximum.
This output stays within specifications for 10ms during power loss.
This hold-up time is valid at 10V with a maximum load.
This feature prevents data loss during brief interruptions.
Secure all wiring to avoid accidental disconnection or shorts.
Verify the input voltage before applying power to the system.
