Siemens 6AV2124-0JC01-0AX0 Replacement for SIMATIC HMI

Product Overview

Siemens 6AV2124-0JC01-0AX0 Replacement for SIMATIC HMI Comfort Panel: Smooth Transition & Legacy System Upgrade

The Siemens 6AV2124-0JC01-0AX0 is a SIMATIC HMI Comfort Panel featuring a 9-inch WVGA (800×480) widescreen TFT touch display, designed for demanding industrial visualization tasks across process automation, machine control, and manufacturing execution environments. As legacy HMI panels from the TP900, OP series, or earlier SIMATIC Multi Panel generations reach end-of-life or become increasingly difficult to source, the 6AV2124-0JC01-0AX0 provides a validated, drop-in upgrade path that preserves existing wiring infrastructure, communication architecture, and operator familiarity.

For facilities running older SIMATIC S7-300, S7-400, or early S7-1500 controller platforms, migrating the HMI layer is often the first step in a phased modernization strategy. The 6AV2124-0JC01-0AX0 supports both PROFINET and MPI/PROFIBUS DP communication interfaces, enabling direct integration with existing S7-300 CPUs such as the CPU 315-2 PN/DP or CPU 317-2 DP without requiring controller-side reprogramming. This dual-protocol capability dramatically reduces migration risk and allows engineers to retain validated PLC logic while upgrading only the visualization layer.

Physically, the panel fits standard 9-inch cutout dimensions consistent with earlier SIMATIC TP900 Comfort and OP9 installations. The mounting depth and panel cutout requirements are compatible with most existing control cabinet door configurations, eliminating the need for sheet metal rework. The 24 VDC power supply input is identical to predecessor models, meaning existing power distribution wiring and terminal blocks — including SIMATIC S7 power supply modules such as the PS 307 or PS 305 — can be reused without modification.

From a software perspective, existing TIA Portal V13 or V14 projects can be migrated to TIA Portal V16 or V17 with the built-in project migration wizard, preserving screen layouts, tag assignments, alarm configurations, and recipe structures. Engineers migrating from WinCC flexible projects will find the migration assistant handles the majority of object conversion automatically, with only minor adjustments required for advanced scripting or custom controls. The panel’s 12 MB user memory and integrated SD card slot support complex visualization projects with trend displays, alarm logging, and recipe management without external storage dependencies.

In distributed I/O architectures, the 6AV2124-0JC01-0AX0 is commonly deployed alongside ET 200SP and ET 200MP remote I/O stations connected via PROFINET, as well as SIMATIC S7-1500 CPUs acting as the central controller. For legacy PROFIBUS-based systems, the panel’s integrated MPI/PROFIBUS DP port allows direct connection to S7-300 racks housing digital input modules such as the SM 321 or analog output modules such as the SM 332, without requiring an additional communication gateway or protocol converter.

Communication module compatibility extends to CP 343-1 and CP 443-1 Ethernet communication processors installed in S7-300 and S7-400 racks, enabling PROFINET-based HMI connectivity in environments where the CPU itself lacks an integrated PN interface. For drive integration, the panel supports visualization of SINAMICS G120 and SINAMICS S120 drive parameters via PROFIBUS or PROFINET, allowing operators to monitor speed references, fault codes, and energy consumption directly from the HMI without a separate drive panel.

Field commissioning of the 6AV2124-0JC01-0AX0 is straightforward. The panel boots from an integrated project stored on the internal flash memory or an SD card, and IP address assignment can be performed via the panel’s startup dialog or remotely through TIA Portal’s device configuration. For sites requiring rapid panel swap during unplanned downtime, the SD card-based project backup allows a replacement unit to be operational within minutes of installation, minimizing production interruption.

Compatibility Comparison Table

Seamless Upgrade Solutions

A complete HMI migration rarely involves the panel alone. When upgrading from a legacy SIMATIC visualization platform to the 6AV2124-0JC01-0AX0, the following components are commonly part of the same modernization scope:

For controller-side upgrades, the SIMATIC S7-1500 CPU 1515-2 PN is a natural pairing, offering integrated PROFINET interfaces that communicate directly with the Comfort Panel without additional networking hardware. In existing S7-300 environments, the CPU 315-2 PN/DP remains fully compatible and can continue operating without modification while the HMI layer is upgraded. Where PROFIBUS-based I/O must be retained, the IM 153-2 interface module for ET 200M distributed I/O stations allows legacy field devices to remain connected during a phased migration.

Power distribution within the control cabinet typically involves the SITOP PSU100S 24V/10A regulated power supply, which provides stable 24 VDC to both the HMI panel and associated I/O modules. Signal conditioning between field sensors and the controller is often handled by SIMATIC S7 SM 331 analog input modules or third-party signal isolators where intrinsic safety barriers are required.

For programming and commissioning, the PC Adapter USB A2 programming cable enables direct MPI/PROFIBUS connection between a TIA Portal engineering station and the S7-300 rack, while the panel itself is configured over Ethernet. In drive-integrated applications, the SINAMICS G120 Control Unit CU240E-2 PN communicates with the S7-1500 controller via PROFINET, with drive status and fault visualization handled directly on the 6AV2124-0JC01-0AX0 HMI screen.

Where the existing control cabinet includes a SIMATIC S7-300 rack (UR2) with multiple I/O modules, the physical rack and backplane can typically be retained during the HMI upgrade, reducing the scope and cost of the modernization project. Terminal blocks and marshalling panels from the existing installation are fully reusable, as the 6AV2124-0JC01-0AX0 does not impose any changes to field wiring or I/O addressing.

Retrofit Guidance FAQ

Q: Can I reuse existing MPI wiring when replacing a TP900 with the 6AV2124-0JC01-0AX0?
A: Yes. The 6AV2124-0JC01-0AX0 includes an integrated MPI/PROFIBUS DP port (RS-485). Existing MPI cables and network termination resistors can be reused without modification. Ensure the MPI address is configured correctly in the panel startup dialog to match the existing network topology.

Q: Do I need to rewrite my TIA Portal or WinCC flexible project?
A: No full rewrite is required. TIA Portal includes a migration wizard that converts WinCC flexible projects and earlier TIA Portal versions. Most screen objects, tags, alarms, and recipes migrate automatically. Manual review is recommended for VB scripts and custom ActiveX controls.

Q: Is the panel cutout size identical to the MP 277 9″ or TP900?
A: The 6AV2124-0JC01-0AX0 uses a standard 9-inch Comfort Panel cutout. In most cases this is compatible with existing cabinet door cutouts from the MP 277 9″ and TP900 series. Verify the exact cutout dimensions in the hardware installation manual before ordering if the cabinet door has been customized.

Q: What communication protocols does the panel support for S7-1500 integration?
A: PROFINET (TCP/IP) is the primary protocol for S7-1500 integration. The panel also supports OPC UA client functionality for data exchange with third-party controllers and SCADA systems. MPI/PROFIBUS DP remains available for legacy S7-300/400 connectivity.

Q: How quickly can a replacement panel be commissioned on-site?
A: If a project backup exists on an SD card from the original panel, a replacement 6AV2124-0JC01-0AX0 can be operational within 15–30 minutes of physical installation. IP address assignment and communication parameter configuration are the only steps required before the panel resumes normal operation.

Q: Is the 24 VDC power connector compatible with existing cabinet wiring?
A: Yes. The panel uses a standard 2-pin 24 VDC connector. Existing power supply wiring from SITOP or equivalent 24 VDC sources can be connected directly without rewiring.

Warranty Assurance

Every Siemens 6AV2124-0JC01-0AX0 unit supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each unit undergoes a functional pre-shipment test covering display integrity, touch calibration, communication port operation, and power supply verification. Units that do not pass the full test protocol are not shipped.

In the event of a warranty claim, TOPNLMS provides replacement unit dispatch within 3 business days of fault confirmation, minimizing production downtime for our customers. Our after-sales response team is reachable via email at [email protected] or by phone at +86 18359293191 for technical pre-sales consultation, compatibility verification, and post-delivery support.

Stock is maintained in Xiamen, China, with express international shipping available to most destinations. Lead times for in-stock units are typically 3–7 business days door-to-door for major industrial regions including Europe, Southeast Asia, and the Middle East. Customs documentation, including commercial invoices and packing lists with HS code declarations, is prepared for all international shipments to facilitate smooth customs clearance.

For procurement teams requiring formal quotations, test reports, or certificate of conformity documentation, please contact us directly. Bulk order pricing and consignment stock arrangements are available for MRO and system integrator customers.

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