6175-LMX Allen Bradley

Description

Product Name:  6175-LMX  Allen Bradley Programmable controller

Product details:

The 6175-LMX is an Allen-Bradley component that serves as a Multiplexer. It is typically sold as part of a kit (e.g., with the 6175 LOM Communications Board) for the legacy SLC 100/150 programmable controller platform.

📝 Product Description & Parameters

• Product Type: Communications Multiplexer Board.

• Platform: Associated with the SLC 100/150 Programmable Controller family (a historic/legacy platform).

• Function: Its primary function is to combine multiple low-speed data streams into a single higher-speed stream for transmission, or to allow a single communication port to interface with multiple devices.

• Key Parameter (Inferred): It facilitates data communication and sharing within the control system, likely over older protocols like RS-232 or similar proprietary links used by the SLC 100/150 line.

• Usage: It would be installed within the chassis of the SLC controller system.

⭐ Product Advantages (Contextual to the Era)

While this is a legacy product, its original advantages in the 1980s and 90s would have included:

• Cost Efficiency: By multiplexing data, it allowed a single, more expensive communications channel (e.g., a modem or a dedicated port on a host computer) to serve multiple SLC controllers or devices, saving money on hardware.

• Simplified Wiring: Reducing the total number of physical communication lines required between controllers and a central monitoring/supervisory system.

• Integration: Provided a necessary link for the SLC 100/150 (a small-scale, early PLC) to connect to larger industrial networks or operator interface terminals (OITs) of the time.

• Reliability: As a standard Allen-Bradley component, it offered industrial-grade reliability for 24/7 operation in harsh factory environments.

⚠️ Important Notes (Precautions)

The most critical considerations for this particular product today relate to its age:

• Obsolete Status: The SLC 100/150 platform is obsolete and is no longer supported by Rockwell Automation (Allen-Bradley’s parent company).

• Replacement Parts: Finding new, original parts is extremely difficult. Replacements typically come from the surplus/aftermarket (like eBay), meaning availability is low and the condition can vary.

• System Migration: Any system still relying on the 6175-LMX and the SLC 100/150 platform should be considered high-risk and is a candidate for migration to a modern, supported platform like the Allen-Bradley MicroLogix, CompactLogix, or ControlLogix series.

• Technical Support: Detailed wiring diagrams and programming assistance are very limited, often requiring experienced technicians who worked on these systems decades ago.

🏭 Product Application (Inferred)

The 6175-LMX would have been used in applications requiring data collection or supervisory control for multiple early-generation SLC controllers:

• Small-Scale Batching: Connecting several SLC 100/150 PLCs controlling small mixers, tanks, or packaging lines to a single supervisory PC or display.

• Machine-to-Machine (M2M) Communication: Allowing adjacent machines controlled by SLCs to share basic status information.

• Early SCADA/HMI: Connecting a cluster of SLC controllers to an early Human-Machine Interface (HMI) screen or a Supervisory Control and Data Acquisition (SCADA) system via a single communication port.

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Colour：new Warranty: 12 months
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