ABB LD 810HSE EX 3BSE091722R1 Communication Module

The ABB LD 810HSE EX, also cataloged as the LD 810HSE EX Communication Module, operates as a dedicated hardware component for fieldbus network linking and data conversion within ABB S900 IO hardware platforms. Mounted on a standard DIN rail, the module links four H1 field networks with a High Speed Ethernet (HSE) trunk, executing high-speed protocol conversion across Foundation Fieldbus architectures.

Hardware Specifications

Backplane Bus Communication Velocity & I/O Density Scaling

The LD 810HSE EX linking device maintains backplane bus communication velocity across deterministic Ethernet and Foundation Fieldbus segments. By aggregating four separate H1 links into a single High Speed Ethernet port, the module optimizes cabinet I/O density scaling while isolating field communication signals. High-density firmware flash compatibility ensures synchronized parameter exchange across connected controller sub-racks without introducing network transmission bottlenecks.

Frequently Asked Questions

Q: Can the LD 810HSE EX be installed to replace a single LD 800 device in an existing redundant pair?

A: No. Mixing LD 800 and LD 810HSE EX modules in a single redundant pair is not supported; both units in a redundant pair must be replaced with LD 810HSE EX modules simultaneously.

Q: How is primary operating power delivered to the LD 810HSE EX module and its H1 links?

A: The module itself requires an external 24 VDC power supply connection, while all connected H1 fieldbus links must be powered independently via dedicated fieldbus power conditioners.

Q: How is the redundancy link cable provided for paired LD 810HSE EX installations?

A: The redundancy cable can be procured or fabricated directly by the customer according to standard Ethernet link specifications rather than requiring a proprietary factory cable.

Field Installation Guidelines

Follow these technical procedures during panel installation and field cabling:

1. DIN-Rail Mounting: Snap the LD 810HSE EX securely onto a top-hat 35 mm DIN rail, verifying that the rear metal DIN clamp fully latches onto the rail edge.
2. Earth Ground Bonding: Ensure the DIN rail surface is unpainted and directly bonded to the cabinet protective earth (PE) bus to establish shield termination ground paths for the HSE and H1 ports.
3. Power Connection: Wire an isolated external 24 VDC power source to the module power terminals; confirm separate power supplies are configured for the H1 fieldbus segment conditioners.
4. Network Cabling: Connect the HSE network cable to the primary Ethernet port and route shielded twisted-pair cables from the four H1 links, ensuring line termination resistors are active at both ends of each H1 segment.