Allen Bradley 1734-MB Point I/O Mounting Base

Configured for modular chassis assembly in Point I/O networks, the Allen Bradley 1734-MB (1734-MB Mounting Base) provides direct physical and electrical execution of inter-module backplane communication and signal distribution.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

The 1734-MB serves as the mechanical and electrical foundation for Point I/O modules, facilitating backplane bus communication velocity across the DIN-rail mounted assembly. As a passive mounting base, it ensures deterministic signal transfer between the network adapter and the associated I/O modules. The mechanical locking mechanism maintains backplane bus integrity, preventing data loss due to vibration. Integration into Profinet or EtherNet/IP architectures requires precise alignment of the male and female connectors to ensure the electrical backplane bus is continuous throughout the station. I/O density scaling is limited by the maximum number of modules supported by the network adapter power budget.

Frequently Asked Questions

Q: Can the 1734-MB be used in applications exceeding 1000 meters in altitude?

A: Operation above 1000 meters may require de-rating of environmental specifications. Consult the system-wide thermal and electrical design guidelines for high-altitude installations to ensure backplane bus stability.

Q: Is this mounting base compatible with all 1734 series terminal blocks?

A: The 1734-MB supports standard Point I/O removable terminal blocks. Ensure the terminal block is fully seated into the base to ensure secure electrical contact and prevent intermittent signal faults.

Field Installation Guidelines

1. DIN Rail Preparation: Secure a 35 mm DIN rail to the enclosure panel. Ensure the rail is clean and free of oxidation to provide a reliable chassis ground path.
2. Mounting: Snap the 1734-MB onto the DIN rail. Press firmly until the module clicks into the locked position.
3. Module Interlocking: Align the tongue-and-groove side connectors with adjacent 1734-MB bases. Slide the modules together to establish the electrical backplane bus connection.
4. Wiring: Install the required removable terminal block into the 1734-MB. Torque terminal screws to manufacturer specifications to ensure vibration-resistant connections.
5. Environment: Verify that the installation area maintains a humidity level below 80% non-condensing and the ambient temperature remains within the 0 to 40 deg C range.