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Sustaining HVAC Infrastructure:Affordable PLC Solutions for Legacy Siemens Systems

By UniMAT  •  0 comments  •   3 minute read

Sustaining HVAC Infrastructure:Affordable PLC Solutions for Legacy Siemens Systems

  Keeping aging HVAC systems running reliably is a constant challenge for building managers and operators.At the heart of many of these systems lie legacy Siemens PLCs,like the S7-200,S7-200 SMART,S7-300,and S7-1200 series.While robust in their time,these controllers face increasing risks:dwindling spare parts,rising repair costs,potential downtime,and limited support.Replacing the entire system is often prohibitively expensive.

  The Affordable,Seamless Solution:Unimat PLCs

  There's a smarter,more economical path forward:direct replacement with Unimat PLCs.Designed specifically for seamless integration into existing Siemens-centric environments,Unimat controllers offer a lifeline for your critical HVAC infrastructure without the need for costly rewiring or extensive reprogramming.

  Unimat:Perfect Compatibility for Your Legacy Siemens PLCs

  •   Unimat UN 200:Direct replacement for Siemens S7-200 PLCs.Maintain your existing programs and wiring.
  •   Unimat UN 200 SMART:Direct replacement for Siemens S7-200 SMART PLCs.Seamless upgrade path.
  •   Unimat UN 300:Direct replacement for Siemens S7-300 PLCs(including CPU and I/O modules).Preserve your investment in racks and backplanes.
  •   Unimat UN 1200:Module Compatibility for S7-1200 Systems
    •   Crucially,the Unimat UN 1200 offers SIGNAL MODULES designed as direct replacements for Siemens S7-1200 system modules.
    •   It does NOT include a replacement CPU for the S7-1200.Unimat UN 1200 modules allow you to extend or replace failing I/O within your existing S7-1200 CPU framework,providing a cost-effective way to maintain and expand your system.

  Why Choose Unimat to Sustain Your HVAC Systems?

  1.   Seamless Drop-In Replacement:Unimat PLCs are engineered for true plug-and-play compatibility with legacy Siemens S7 systems.Installation is typically straightforward,minimizing costly downtime during the transition.
  2.   Significant Cost Savings:Unimat delivers exceptional performance and reliability at a fraction of the cost of sourcing new or refurbished original Siemens hardware,or undertaking a full system overhaul.Expect savings often exceeding 30-50%.
  3.   Risk-Free Evaluation:Free Sample Testing!Unsure if Unimat is the right fit?We offer FREE sample units for testing and validation in your specific environment.Verify compatibility and performance with zero upfront commitment.
  4.   Peace of Mind with 3-Year Warranty:Backed by a comprehensive 3-year warranty,Unimat PLCs provide long-term reliability and protection for your investment.
  5.   Extended Hardware Lifespan:Breathe new life into your existing Siemens-based HVAC panels.Avoid the massive capital expenditure of a complete system replacement.
  6.   Simplified Maintenance:Reduce dependency on scarce legacy Siemens parts.Unimat offers readily available,affordable spares.

  Unimat vs.Legacy Siemens PLCs:Your Upgrade Path

Feature Legacy Siemens S7 PLCs (200/200 SMART/300/1200) Unimat Replacement PLCs (UN 200/UN 200 SMART/UN 300/UN 1200 Modules)
Compatibility Original System Direct Drop-in Replacement
CPU for S7-1200 S7-1200 CPU UN 1200: Signal Modules ONLY (No CPU Replacement)
Hardware Cost High (New/OEM Refurb) or Prohibitive (NOS) Significantly Lower Cost
Parts Availability Scarce & Expensive Readily Available & Affordable
Warranty Limited or None (for legacy) Comprehensive 3-Year Warranty
Free Sample Test Typically Not Offered YES - Available!

  Sustain Your HVAC Operations Today

  Don't let aging Siemens PLCs jeopardize your building's comfort,efficiency,and operational continuity.Unimat provides the proven,affordable solution to extend the life of your critical HVAC control infrastructure reliably and cost-effectively.

  Ready to experience the Unimat advantage?

  •   Test drive Unimat risk-free with our FREE sample program.
  •   Enjoy significant savings on high-quality,compatible PLC hardware.
  •   Gain peace of mind with our industry-leading 3-year warranty.

  Contact us today to discuss your specific legacy Siemens PLC replacement needs and request your free Unimat sample!Let us help you build a sustainable future for your HVAC infrastructure.

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