Honeywell 51304362-100 MU-PLAM02 Analog MUX Module

Product Overview

The Honeywell 51304362-100 MU-PLAM02 multiplexes multiple analog signals into a single data stream. This module accepts up to 16 analog inputs and routes them to the main controller. It optimizes I/O capacity by consolidating numerous field signals efficiently. The unit integrates into Honeywell Series C and TDC 3000 systems.

Technical Specifications

Parameter	Specification
Model Number	51304362-100 MU-PLAM02
Product Type	Analog Multiplexer Module
Number of Inputs	16 analog channels
Input Signal Range	4–20 mA, 0–5 VDC, 1–5 VDC
Output Interface	1 multiplexed analog output
Resolution	12 bits
Sampling Rate	100 samples per second total
Accuracy	±0.1% of full scale at 25°C
Temperature Drift	±50 ppm/°C
Channel Isolation	None (common ground)
Power Supply	24 VDC from backplane
Power Dissipation	3.5 W typical

Physical Dimensions and Mounting

This module measures 125 mm in height, 45 mm in width, and 160 mm in depth. The unit weighs approximately 0.35 kg. It mounts directly onto a standard DIN rail inside the Series C cabinet. The front panel includes 16 LED indicators for channel activity status. These LEDs illuminate sequentially as the module scans each input.

Electrical Interface and Field Connectivity

A 50-pin D-sub connector serves as the primary interface for all field signal wiring. The module accepts 4–20 mA, 0–5 VDC, or 1–5 VDC inputs through software configuration. Each channel includes built-in 250 Ω resistors for current loop applications. The multiplexed output connects to the backplane for controller communication. This design reduces the number of required backplane connections significantly. Field transmitters, thermocouples, and pressure sensors connect directly to the input terminals.

Multiplexing Operation and Performance

The 51304362-100 MU-PLAM02 scans all 16 channels in a continuous round-robin sequence. It converts each analog signal into a 12-bit digital value with high precision. The module completes a full scan cycle within 10 milliseconds for each channel. This rapid scanning ensures timely data delivery to the control algorithm. Furthermore, the module includes programmable channel skipping for unused inputs. The output stage holds the last sampled value until the next update arrives.

Installation and System Integration

You can install this multiplexer in any available I/O slot within the chassis. The backplane automatically handles address assignment and power distribution tasks. The module requires no external power source beyond the backplane supply. Always configure the input type using the system configuration software before operation. For high-availability applications, consider installing redundant units for failover support. Verify that the total channel count matches your process I/O requirements.

Environmental Certification and Durability

This module carries CE marking and UL certification for industrial applications. It also complies with RoHS and WEEE environmental directives. The conformal coating protects the PCB against moisture and dust ingress. This coating extends operational life in demanding plant conditions.