MX6*A | Yokogawa DCS Interface Multiplexer Card

Product Overview

The Yokogawa MX6*A (assembly number S9840BP-05) is an interface module card designed for Yokogawa Distributed Control Systems. It functions as a multiplexer card for temperature measurement applications, supporting 3-wire PT100 RTD inputs. The card multiplexes multiple RTD sensor signals into a single data stream for processing by the central controller, enabling cost-effective temperature monitoring across multiple process points.

Key Specifications

• Model Number: MX6*A (AS S9840BP-05)
• Product Type: Interface Module / Multiplexer Card
• Sensor Type: 3-wire PT100 RTD
• Function: Multiplexer for temperature input signals
• System Compatibility: Yokogawa CENTUM DCS
• Mounting: Plug-in card for Yokogawa card nest

Features and Benefits

• Multiplexer design consolidates multiple RTD inputs into one card slot
• 3-wire PT100 configuration provides accurate temperature measurement with lead wire compensation
• Compact plug-in format fits standard Yokogawa DCS card nests
• Reduces wiring complexity compared to individual RTD input modules
• Reliable signal routing ensures consistent temperature data transmission
• Compatible with Yokogawa CENTUM series DCS platforms

Applications

• Process vessel temperature monitoring
• Reactor multi-point temperature measurement
• Heat exchanger inlet/outlet temperature tracking
• Boiler steam temperature monitoring
• Any application requiring multiple PT100 RTD inputs in a single DCS slot

FAQ

Q: What does the suffix *A indicate on the MX6 module?
A: The suffix letter denotes the hardware revision level. MX6*A is Revision A. Verify compatibility with your specific Yokogawa DCS version before ordering.

Q: What RTD type does the MX6*A support?
A: The module supports 3-wire PT100 RTD sensors for temperature measurement.

Q: How many RTD inputs can the MX6*A multiplex?
A: The exact channel count depends on the specific model variant. Consult Yokogawa documentation for your system configuration.

Q: Is the MX6*A compatible with CENTUM VP?
A: The module is designed for Yokogawa CENTUM series DCS. Verify specific compatibility with your CENTUM VP, CS3000, XL, or microXL system version.

Installation Guide

1. Power down the DCS rack before installing the multiplexer card
2. Align the MX6*A card with the card nest guide rails
3. Insert the card firmly until the backplane connectors engage fully
4. Connect 3-wire PT100 RTD sensors to the module input terminals
5. Ensure proper shield termination for noise immunity
6. Configure multiplexer channels in the Yokogawa engineering station
7. Perform calibration checks against known temperature standards

Selection Tips

• Select MX6*A for multiplexer-based PT100 RTD temperature input applications
• Verify your DCS supports the MX6 series multiplexer cards
• Confirm all RTD sensors are 3-wire PT100 type before ordering
• For non-PT100 sensors, consider dedicated temperature input modules
• Order spare cards for critical temperature monitoring loops