Welcome to the UniMAT official website

We are a Chinese PLC/HMI/VFD manufacturer with 20 years of experience.

How to Find Reliable Replacement Modules for Aging Siemens Systems?Unimat PLC Offers 100%Seamless Compatibility

By UniMAT  •  0 comments  •   4 minute read

How to Find Reliable Replacement Modules for Aging Siemens Systems?Unimat PLC Offers 100%Seamless Compatibility

  When the critical Siemens S7-300 or S7-200 PLCs in your factory age,with spare parts becoming prohibitively expensive or discontinued,finding a reliable,economical,and seamless replacement solution becomes an urgent challenge.Equipment downtime risks,soaring maintenance costs,and the prospect of forced large-scale system retrofits are constant concerns for engineers and maintenance managers.

  The Real Challenges of Aging Siemens Systems:

  1.   Scarce&Soaring Cost Spare Parts:Classic series like S7-300 and S7-200 are gradually phased out or reaching end-of-life.Genuine spare parts are increasingly hard to find and their prices are skyrocketing.
  2.   Supply Chain Risk:Relying on obsolete or discontinued modules means production lines constantly face the huge risk of downtime caused by a single module failure.
  3.   Outdated Technology:Aging hardware can limit the addition of new features,hindering the ability to meet modern production and Industrial Internet of Things(IIoT)demands.
  4.   Prohibitively Expensive Retrofits:Completely replacing an entire control system entails massive engineering investment,prolonged downtime,and the cost of software redevelopment.

  The Solution:Unimat PLC-Your Reliable Choice Focused on Siemens Compatibility

  Facing these challenges,Unimat PLC emerges as the ideal solution for replacing aging Siemens system components.Its core strength lies in genuine 100%hardware compatibility and seamless software integration,allowing you to upgrade or replace modules without altering existing programs or wiring,minimizing risk and cost.

  How Unimat Achieves Perfect Compatibility:

  1.For Discontinued Series(S7-300/S7-200):

    •   Unimat Dedicated Replacement Modules:Unimat offers modules fully compatible with Siemens S7-300 and S7-200 PLCs.These modules match the original Siemens modules exactly in physical dimensions,electrical interfaces(power,I/O),mounting(DIN rail),and bus interfaces(MPI/DP).
    •   100%Software Compatibility:This is the most crucial advantage!Your existing Siemens STEP 7(for S7-300)or STEP 7-Micro/WIN(for S7-200)engineering software requires zero modification.Unimat modules are directly recognized,configured,programmed,and diagnosed by this software.Your valuable,accumulated program assets run unchanged on Unimat hardware.
    •   Direct Replacement:When an original module fails or expansion is needed,Unimat compatible modules serve as"plug-and-play"replacements.Insert them directly into the original backplane or rack,requiring no hardware or software adjustments,restoring production instantly.

  2.For Current Mainstream Series(S7-1200/S7-200 SMART):

    •   Unimat 1200 Series:Fully compatible with Siemens S7-1200 PLCs.Maintains high consistency in form factor,mounting,and I/O module interfaces.
    •   Unimat 200 SMART Series:Fully compatible with Siemens S7-200 SMART PLCs,also ensuring physical mounting and electrical connection compatibility.
    •   Seamless Software Integration:Unimat 1200 and 200 SMART series can be programmed,configured,and monitored using Siemens'latest TIA Portal software or STEP 7-Micro/WIN SMART software.Existing TIA Portal projects or SMART projects can be ported almost seamlessly to run on Unimat PLCs,greatly simplifying upgrades for existing systems or providing a cost-effective alternative for new projects.

  Core Advantages of Choosing Unimat as Siemens Replacement Modules:

  •   Zero-Risk Replacement,Protecting Your Investment:Eliminates the need to modify hardware wiring or software programs.Preserves your existing control logic,HMI screens,and network configuration,significantly reducing engineering risk and migration costs.
  •   Drastically Reduce Procurement&Maintenance Costs:Compared to the exorbitant prices or scarcity of original discontinued modules,Unimat offers a much more cost-effective solution,effectively controlling spare parts inventory and maintenance budgets.
  •   Guarantee Production Continuity:Quickly obtain reliable replacement modules,greatly reducing repair times and avoiding production stoppages due to parts shortages.
  •   Seamless Upgrade Path:For systems still using S7-1200/200 SMART,the Unimat series provides a cost-effective parallel option or backup solution,ensuring supply chain security.
  •   Technology Refresh&Local Support:While maintaining compatibility,Unimat may incorporate newer components and technologies for enhanced stability.Additionally,expect faster localized technical support and supply services.

  How to Implement Unimat Replacement:

  •   Identify Requirements Precisely:Determine the exact Siemens module models needing replacement(e.g.,CPU model,digital/analog I/O module models,communication module models).
  •   Consult a Specialist Supplier:Contact an authorized Unimat distributor or technical support.Provide your specific module models to get confirmation of the perfectly matched Unimat compatible model and technical advice.
  •   Small-Scale Test Validation(Recommended):For critical applications,conduct a small batch purchase and power-on test to verify compatibility and operational stability with your existing hardware and software.
  •   Procurement&Deployment:Once confirmed,proceed with procurement.Installation typically involves powering down,removing the old module,inserting the new Unimat module,and powering up.No software changes are needed.
  •   Establish New Spare Parts Inventory:Integrate reliable Unimat compatible modules into your spare parts management system for future maintenance readiness.

  Conclusion:

  Say goodbye to the anxiety of discontinued Siemens PLC modules and their cost pressures!Unimat PLC,with its 100%hardware compatibility and seamless software support for discontinued Siemens S7-300/S7-200 series,and its seamless compatibility with current S7-1200/S7-200 SMART series,provides a low-risk,cost-controllable,and easy-to-implement replacement path.It allows you to maximize the value of your existing system investment,ensuring stable and efficient production line operation,while leaving room for flexible future upgrades.

  Take Action Now:

  •   Inventory critical equipment in your factory relying on aging Siemens S7-300/S7-200 or requiring S7-1200/200 SMART spares.
  •   Contact Unimat or an authorized partner to get compatibility confirmation and solutions for your specific module models.
  •   Evaluate the economic benefits and risk reduction of using Unimat compatible modules for replacement or as spares.

  Choose Unimat for worry-free compatibility and uninterrupted production!

Previous Next