Schneider TSXP4720 Replacement/Upgrade Solution for TSX Premium

Product Overview

Schneider TSXP4720 Replacement/Upgrade Solution for TSX Premium: Smooth Migration from Legacy PLC Systems

The Schneider Electric TSXP4720 is a high-performance processor module designed for the TSX Premium PLC platform — one of the most widely deployed mid-range automation controllers in process manufacturing, water treatment, building management, and discrete production lines across Europe and Asia. As the TSX Premium series approaches end-of-life and spare parts become increasingly scarce, many plant engineers and maintenance teams are now facing the critical challenge of sourcing a reliable TSXP4720 replacement or planning a structured upgrade path that minimizes production disruption.

At TOPNLMS, we maintain verified stock of the TSXP4720 processor module, fully tested and ready for immediate dispatch. Whether you are executing an emergency swap-out of a failed unit or planning a phased migration from an older TSX 17 or TSX 7 series controller, our team provides the technical support and sourcing assurance your project demands.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful TSXP4720 migration rarely involves the processor module alone. In practice, upgrading from a legacy TSX 17 or TSX Micro platform to the TSX Premium architecture requires a coordinated review of the entire control cabinet. The TSXP4720 slots into a TSX RKY rack — typically the TSX RKY 8EX or TSX RKY 12EX — which must be verified for slot availability and backplane compatibility before installation.

On the I/O side, existing discrete and analog modules such as the TSX DEY 16D2 digital input module and TSX AEY 414 analog input module are often retained during migration, as they share the same rack bus architecture. However, if the legacy system used fixed I/O modules from the TSX 17 family, these will need to be replaced with TSX Premium-compatible equivalents and re-addressed in PL7 Pro.

Communication infrastructure is another key consideration. The TSXP4720 natively supports Uni-Telway and Modbus RTU/ASCII via its built-in serial port, but many sites also require Ethernet connectivity through a TSX ETY 110 or TSX ETY 5103 Ethernet module installed in an adjacent rack slot. If the existing system used Fipway or Fipio fieldbus, the TSX FPP 10 Fipway PCMCIA card or a dedicated TSX FPP 20 module can be integrated to preserve fieldbus topology without rewiring the field devices.

Power supply compatibility should be confirmed early. The TSX PSY 2600M and TSX PSY 5500M power supply modules are directly compatible with the TSXP4720 rack and are commonly available as companion parts. For cabinets with higher current demands — particularly when expanding I/O capacity during the upgrade — the TSX PSY 8500M provides additional headroom.

For sites that require HMI continuity, the TSXP4720 communicates natively with Magelis XBTGT and XBTGK series HMI terminals via Uni-Telway, allowing existing operator panels to remain in service without driver changes. Programming cable TSXPCX1031 or TSXPCX3030 USB-to-serial adapters are required for initial configuration and program upload from a PL7 Pro or Unity Pro workstation.

Retrofit Guidance FAQ

Q: Can I reuse existing field wiring when replacing a TSX 17 processor with the TSXP4720?
A: Field wiring connected to I/O modules is generally unaffected, as the migration targets the CPU and rack. However, if I/O modules are also being replaced, terminal block wiring must be verified against the new module’s pinout. TSX Premium I/O modules use the same 20-pin and 40-pin connector standards as many TSX 17 I/O modules, reducing rewiring scope.

Q: Do I need to rewrite my PLC program?
A: Not necessarily. PL7 Pro includes a migration utility that converts PL7-2 and PL7-3 programs to PL7 Pro format. Unity Pro also provides a TSX Premium import path. I/O addressing changes from symbolic to topological addressing are the most common adjustment required.

Q: Is Modbus communication preserved after migration?
A: Yes. The TSXP4720 supports Modbus RTU and ASCII on its built-in serial port. Existing Modbus device configurations (slave addresses, baud rates, parity) can be replicated in PL7 Pro’s communication configuration screens without changes to field devices.

Q: Will the TSXP4720 fit in my existing control cabinet?
A: The TSX Premium rack (TSX RKY series) has a standard DIN-rail or panel-mount footprint. If you are replacing a same-series rack, the physical dimensions are identical. Migrating from a TSX 17 fixed-format controller will require a new rack, but the compact TSX RKY 4EX (4-slot) is suitable for smaller cabinets.

Q: How long does commissioning typically take?
A: For a direct same-series swap, commissioning typically takes 2–4 hours including program upload, I/O verification, and communication testing. Cross-series migrations with program conversion may require 1–2 days of engineering time depending on program complexity.

Warranty Assurance

Every TSXP4720 unit shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Prior to dispatch, each module undergoes functional verification including power-on self-test, communication port check, and visual inspection for physical integrity. Units are shipped in anti-static packaging with appropriate cushioning to prevent transit damage.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period. Our after-sales response time is within 24 hours on business days. We support customers through the RMA process with clear documentation requirements and fast turnaround.

For procurement teams, we can provide test reports, product photos, and shipping documentation (commercial invoice, packing list, COO certificate) upon request. Bulk orders and long-term supply agreements are available for MRO and system integrator customers.

Stock is held in Xiamen, China, with DHL Express, FedEx, and UPS international shipping options available. Typical lead time for in-stock units is 3–5 business days to most destinations.