Honeywell MC-PLAM02 (51304362-150) Processor Low Level Analog Mux | Replacement, Equivalent & Selection Guide
The Honeywell MC-PLAM02 (Part No. 51304362-150) is a Processor Low Level Analog Multiplexer module designed for use within Honeywell’s TDC 3000 / TotalPlant Solution (TPS) distributed control systems. It serves as a critical signal-conditioning interface between field-level analog sensors and the process controller, enabling high-density, low-level analog input acquisition with precision and reliability.
At Konmask.com, we supply genuine, tested, and refurbished MC-PLAM02 modules to industrial facilities worldwide — with full traceability and quality documentation.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Honeywell |
| Part Number | MC-PLAM02 |
| Reference Number | 51304362-150 |
| Module Type | Processor Low Level Analog Multiplexer (MUX) |
| Platform | Honeywell TDC 3000 / TPS / PlantScape |
| Signal Type | Low-level analog (thermocouple, RTD, mV) |
| Mounting | Card cage / backplane |
| Weight | Approx. 600 g |
| Condition Available | New, Refurbished, Tested |
Note: Specifications are based on published Honeywell documentation. Confirm with your system engineer before substitution.
Compatible Replacement & Equivalent Models
When the MC-PLAM02 is unavailable or end-of-life, the following models may serve as functional equivalents or drop-in replacements depending on your system revision and firmware:
- Honeywell MC-PLAM01 (51304362-100) — Earlier revision; verify backplane compatibility
- Honeywell MC-PLAM03 (51304362-200) — Later revision with enhanced diagnostics
- Honeywell 51304362-175 — Alternate suffix variant; confirm firmware level
- Honeywell MC-PAIH03 / MC-PAIH02 — High-level analog input alternatives for signal-range migration
- Third-party compatible MUX cards — Available for select TDC 3000 chassis; contact us for compatibility assessment
⚠ Important: Always verify chassis slot type, firmware revision, and I/O link compatibility before installing any replacement module. Contact our technical team for a free compatibility check.
Why Choose the Original MC-PLAM02
- Proven field reliability — Deployed in refineries, chemical plants, and power stations globally for 20+ years
- Native TDC 3000 / TPS integration — No configuration bridging or signal conversion required
- Low-level signal fidelity — Optimized for thermocouple and RTD inputs with cold-junction compensation
- Reduced commissioning risk — Original hardware eliminates firmware mismatch and calibration uncertainty
- Spare parts availability — Konmask maintains stock of tested units for rapid dispatch
Typical Applications
- Temperature measurement via thermocouple (Type J, K, T, E, R, S, B) and RTD (Pt100)
- Low-level mV signal acquisition from process transmitters
- Multi-point analog scanning in TDC 3000 High-Performance Process Manager (HPM)
- Redundant analog input configurations in safety-critical loops
- Retrofit and life-extension projects for legacy Honeywell DCS installations
System Compatibility
- Honeywell TDC 3000 (LCN / UCN architecture)
- Honeywell TotalPlant Solution (TPS)
- Honeywell PlantScape (selected configurations)
- High-Performance Process Manager (HPM) card cages
- Advanced Process Manager (APM) — verify slot and firmware
Not compatible with Honeywell Experion PKS C300/C200 series without hardware migration. Contact us for migration path guidance.
Selection Guide
Use the following criteria to confirm the MC-PLAM02 is the right module for your application:
- Signal type: Do you require low-level analog inputs (thermocouple / RTD / mV)? → MC-PLAM02 is appropriate. For 4–20 mA / 1–5 V high-level signals, consider MC-PAIH series.
- Channel count: Verify the number of input channels required matches your I/O plan.
- Chassis revision: Confirm backplane connector type (40-pin vs. 96-pin) matches your card cage.
- Firmware level: Cross-reference the module firmware with your HPM/APM controller version.
- Redundancy: For redundant configurations, two MC-PLAM02 units are required per slot pair.
- Regulatory: For SIL-rated loops, confirm module SIL certification with your functional safety engineer.
Quality Assurance & Sourcing
- All units are inspected, powered-on tested, and function-verified prior to shipment
- Refurbished units include cleaning, component inspection, and burn-in testing
- Traceability documentation available upon request (test reports, photos)
- Sourced from decommissioned plant upgrades, authorized distributors, and OEM surplus
- Packaging: ESD-safe anti-static bags with foam-lined cartons
- Warranty: 12-month replacement warranty on all tested units
How to Order
- Confirm your part number: MC-PLAM02 / 51304362-150
- Specify quantity and required condition (New / Refurbished / Tested-as-removed)
- Provide your DCS system details for compatibility verification (optional but recommended)
- Contact us via email or phone — we respond within 1 business day
- Receive quotation with lead time, shipping options, and payment terms
📧 support@konmask.com | 📞 +0086 19859288691
Replacement & Compatibility FAQ
Q: Can the MC-PLAM02 replace the MC-PLAM01 directly?
A: In most cases yes, but you must verify the backplane revision and firmware compatibility. The -150 suffix indicates a specific hardware revision. Contact us for a compatibility check.
Q: Is the MC-PLAM02 still manufactured by Honeywell?
A: This module is considered legacy/end-of-life by Honeywell. Konmask supplies tested surplus and refurbished units to support ongoing plant operations.
Q: What is the lead time?
A: In-stock units typically ship within 2–5 business days. Lead time for sourced units is 2–4 weeks depending on availability.
Q: Do you provide a warranty?
A: Yes — all tested units carry a 12-month replacement warranty. New surplus units carry manufacturer warranty where applicable.
Q: Can I use a third-party equivalent instead of the original Honeywell module?
A: Third-party equivalents exist for some TDC 3000 slots. We can advise on compatibility, but original Honeywell hardware is always recommended for safety-critical applications.
Q: Do you ship internationally?
A: Yes. We ship worldwide via DHL, FedEx, and UPS with full export documentation.
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Contact: support@konmask.com | +0086 19859288691






