ABB TP855 Baseplate Mounting Unit

The ABB TP855, also cataloged as the TP855 Baseplate Mounting Unit, operates as a dedicated hardware component for mechanical support, structural stabilization, and electrical backplane connectivity within the AC800M controller subsystem of the System 800xA DCS framework. The hardware provides the primary backplane channel paths required to secure AC800M CPUs and adjacent communication modules, enabling stable multi-module data interfacing without signal attenuation.

Hardware Specifications

Industrial Control & Driving Subsystem Routing

• Profinet / EtherNet/IP Deterministic Networks and I/O Density Scaling The baseplate provides the physical and electrical copper track routing needed to expand local module configurations. It establishes high-integrity data paths between the processing unit and specialized network modules. This infrastructure enables communication interfaces to maintain clean data throughput rates across high-density topologies without network jitter or packet loss.
• Backplane Bus Communication Velocity Licences and Firmware Flash Compatibility This passive baseplate operates as a zero-latency parallel bus connector tier linking hot-swappable controller units. Because it utilizes solid-state circuit paths rather than active microcontrollers, it passes control variables and interlocking equations directly through the backplane tracks without code parsing delays, requiring no firmware flash files or software activation licenses.

Frequently Asked Questions

Q: How does the TP855 accommodate redundant hardware setups for mission-critical applications?

A: The backplane network is configured with dual independent power and signal line tracks. When pairing compatible dual-processor modules onto the mounting array, the baseplate serves as the continuous cross-communication path needed to execute sub-millisecond control loop switchovers if the primary unit fails.

Q: What are the backplane firmware flash compatibility constraints during live system maintenance?

A: The TP855 is a passive physical backplane containing no programmable logic chips or flash memory registers. It does not require firmware updates or software calibration during field changes; however, any mounted active processor module must be powered down or put into standby before structural extraction from the baseplate rails.