Siemens 6AV2128-3QB06-0AX1 MTP1500 — HMI Panel Buying Guide

By Abdullah Zahid
12 min read
Siemens 6AV2128-3QB06-0AX1 MTP1500 Unified Comfort Panel 15.6-inch touchscreen for SIMATIC industrial automation

Siemens 6AV2128-3QB06-0AX1 SIMATIC HMI MTP1500 Unified Comfort Panel — 15.6-Inch Touchscreen Specifications, Pricing, and PROFINET Integration Guide

Controls engineers specifying the HMI layer for a SIMATIC S7-1200 or S7-1500 system often arrive at the same crossroads: the 10-inch panel is too small for multi-operator use, and the 19-inch format is more than the cabinet can accommodate. The Siemens 6AV2128-3QB06-0AX1 fills that gap with a 15.6-inch widescreen TFT touchscreen, native PROFINET connectivity, and a WinCC Unified Comfort V16 software foundation — no gateway hardware, no per-seat licensing fees. If your engineering spec already names this model, the practical next step is straightforward.

If you have already confirmed this is the right part, check current pricing and availability at LeadTime.ca — ships worldwide.

Does the 6AV2128-3QB06-0AX1 Actually Fit Your Project Requirements?

The Siemens 6AV2128-3QB06-0AX1 is the right choice for automation engineers and panel builders who need a mid-range industrial HMI touchscreen with native Siemens SIMATIC integration. Buy this model if all of the following apply:

  • Your application requires exactly a 15.6-inch widescreen display — not the 12.1-inch MTP1200 and not the 19-inch MTP1900
  • Your control network uses PROFINET and your PLC is an S7-1200 or S7-1500
  • Your engineering environment runs WinCC Unified Comfort V16 or later in TIA Portal
  • Capacitive multi-touch operator input is a hard requirement (no keypad-only fallback)
  • DVD media delivery is acceptable for the included open-source software package
  • A 16:9 widescreen format suits your process dashboard layout requirements

If your cabinet opening is sized for a 12.1-inch panel, specify the MTP1200 (6AV2128-3MB06-0AX1) instead. If floor-distance visibility on a large production line demands a 19-inch screen, the MTP1900 (6AV2128-3UB06-0AX1) is the correct selection.

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What the MTP1500 Does in a SIMATIC System

The Siemens 6AV2128-3QB06-0AX1 is a 15.6-inch industrial touchscreen panel — catalog-designated SIMATIC HMI MTP1500 — that serves as the operator interface layer between a SIMATIC PLC and the people running a machine or process. It does not perform control logic. Its role is to display live process data from the PLC and pass operator commands back to it over PROFINET. That single architectural position — HMI on top of PLC, connected over Industrial Ethernet — defines every purchase decision around this product.

The display technology is TFT LCD with 16 million colors, rendered in a 16:9 widescreen format. The touch interface is capacitive multi-touch, which means operators can interact with the screen without a stylus and through standard industrial gloves. The engineering and runtime environment is WinCC Unified Comfort, and the panel ships with a DVD containing the open-source software components. There are no per-seat licensing fees associated with WinCC Unified Comfort on this hardware — the software cost is absorbed into the panel purchase. Engineering happens inside TIA Portal, the same environment used to program the connected S7-1200 or S7-1500 PLC, which eliminates the need for a separate HMI programming tool.

The 15.6-inch screen size positions the MTP1500 as the practical mid-range choice in the Unified Comfort Panel family, which spans from the MTP700 at 7 inches to the MTP2200 at 22 inches. At 15.6 inches, the panel accommodates data-dense process dashboards that would be unreadable on a 10-inch display, while fitting in standard control cabinets that cannot physically accept a 19-inch or larger panel front.

Where the MTP1500 Sits in Your Control Architecture

The 6AV2128-3QB06-0AX1 occupies the operator visualization layer of a SIMATIC automation system, sitting between the control network and the human operator. Here is the typical component chain:

  • Siemens S7-1500 or S7-1200 PLC executes control logic and holds process variables
  • Industrial Ethernet switch distributes the PROFINET network across devices
  • The MTP1500 connects to the switch via shielded Cat.5e or Cat.6 Industrial Ethernet cable, establishing a PROFINET session with the PLC
  • WinCC Unified Comfort runtime on the panel reads and writes PLC tags over PROFINET to render live data on the 15.6-inch TFT screen
  • Operator touch input on the capacitive screen generates command tags written back to the PLC for actuator control, recipe selection, and alarm acknowledgment

Industries and Applications Where the MTP1500 Is the Standard Choice

Automotive assembly lines commonly mount the MTP1500 on control pedestals at each work cell. The 15.6-inch widescreen format allows operators and line supervisors to simultaneously monitor welding pressure, cycle time, and active alarm status in a single view — a display density that a 10-inch panel cannot deliver without aggressive pagination.

In food and beverage bottling and packaging plants, the MTP1500 is deployed to display production rate, temperature set-points, fill level, and batch traceability data. Touch recipes allow shift-change handover without manual recalibration — an operator selects the next product run from a pre-defined recipe list, and the PLC applies the new set-points automatically.

Pharmaceutical tablet press and filling operations use the 15.6-inch screen for compliance monitoring — displaying weight, count, humidity, and pressure parameters with full alarm history. The PROFINET connection supports integration with pressure transducers and servo drives sharing the same Industrial Ethernet network without protocol gateways.

Machine tool OEM integrators frequently select the MTP1500 for legacy HMI replacement projects. Native PROFINET eliminates the protocol gateway that older RS-232 or proprietary serial HMI replacements required, and the open-source software foundation reduces ongoing licensing cost when the machine is resold or redeployed.

Application Typical Deployment
Automotive assembly line Control pedestal at weld cell; S7-1500 PROFINET link; real-time pressure and cycle time display
Beverage bottling plant Panel-mount in line control cabinet; fill level, speed, and temperature visualization; touch recipe selection
Pharmaceutical tablet press Wall-mount at press station; PROFINET mesh with servo drives and transducers; alarm history logging
Food packaging line Operator pedestal; batch traceability, expiration codes, and weight verification display
Machine tool OEM retrofit Drop-in legacy HMI replacement; PROFINET eliminates serial gateway; open-source software base
Water treatment facility Control room panel-mount; process variable monitoring across multiple S7-1200 nodes

Key Specifications Engineers Need Before Ordering

Specification Value
Official Product Name SIMATIC HMI MTP1500, Unified Comfort Panel
Catalog Number 6AV2128-3QB06-0AX1
Display Size 15.6 inches diagonal
Display Technology TFT LCD
Color Depth 16 million colors (true color)
Touch Interface Capacitive multi-touch
Aspect Ratio 16:9 widescreen
Primary Communication Protocol PROFINET (Industrial Ethernet)
Software Requirement WinCC Unified Comfort V16 or later
Included Media DVD (open-source software components)

Full technical specifications are available on the product page at LeadTime.ca.

MTP1500 vs. the Full Unified Comfort Panel Family — Which Size Do You Actually Need?

The Unified Comfort Panel family shares a common software platform — WinCC Unified Comfort V16 or later, TIA Portal engineering, PROFINET connectivity, and an open-source software base — across all six screen sizes. The only meaningful variables between models are display size, cabinet footprint, cost, and the use case each size addresses most efficiently.

Model Display Size Catalog Number (Base) Typical Use Relative Cost PROFINET
MTP700 7 inches 6AV2128-3GB06-0AX1 Single-machine control, space-critical Low Yes
MTP1000 10 inches 6AV2128-3KB06-0AX1 Individual operator, limited dashboard Low-Medium Yes
MTP1200 12.1 inches 6AV2128-3MB06-0AX1 Multi-operator, space-constrained cabinet Medium Yes
MTP1500 15.6 inches 6AV2128-3QB06-0AX1 Mid-range production, standard cabinet Medium-High Yes
MTP1900 19 inches 6AV2128-3UB06-0AX1 Large format, command center visibility High Yes
MTP2200 22 inches 6AV2128-3XB06-0AX1 Command center, high data density dashboards Very High Yes

The 3.5-inch difference between the MTP1200 and the MTP1500 is more significant than it sounds at a production cell. A 15.6-inch widescreen at 16:9 delivers substantially more horizontal dashboard real estate for displaying simultaneous process values, trend graphs, and alarm lists without requiring the operator to navigate between screens. If your application involves more than one operator reading the panel simultaneously, or if viewing distance exceeds arm's length, the MTP1500 is the practical minimum. The MTP1900 becomes the correct choice only when floor-to-panel distance is large enough that the 15.6-inch display creates a legibility problem — typically in large command-center or central monitoring installations. For space-constrained retrofit work in compact cabinets, the MTP1200 (6AV2128-3MB06-0AX1) costs less and fits where the MTP1500 physically cannot.

If your PROFINET architecture and WinCC Unified Comfort version are confirmed and the 15.6-inch format is the correct fit, check current availability and pricing for the 6AV2128-3QB06-0AX1 at LeadTime.ca.

Expert Verdict: What This Panel Does Well and Where It Has Real Limits

The 6AV2128-3QB06-0AX1 earns its place in SIMATIC-centric automation projects on three concrete grounds. First, the single TIA Portal engineering environment for both the PLC and the HMI eliminates the version synchronization problems that plague mixed-vendor HMI deployments — if your team already programs S7-1500 PLCs in TIA Portal, adding the MTP1500 adds no new toolchain. Second, the absence of per-seat or annual WinCC Unified Comfort licensing fees is a real total-cost-of-ownership advantage over platforms that charge recurring software costs, particularly for machine builders who ship multiple identical cells. Third, native PROFINET connectivity means no protocol gateway hardware, no gateway configuration, and no gateway single point of failure — the MTP1500 appears on the PROFINET network the same way the PLC itself does.

The honest limits: the MTP1500 is not the right panel for heterogeneous control architectures. If your PLC is not a Siemens SIMATIC device, the native PROFINET integration advantage disappears and you would need an additional gateway, which partially offsets the platform's value. The panel also requires WinCC Unified Comfort V16 or later — projects running on older WinCC versions cannot use this hardware without a software upgrade. Finally, the 15.6-inch form factor requires a cabinet front opening and depth that compact retrofit enclosures often cannot provide; verify physical dimensions from the official datasheet before committing to a mounting location.

From a procurement standpoint, the MTP1500 is not a shelf item everywhere. Lead times of 6 to 10 weeks are realistic when the panel is not in a distributor's active stock, and that lead time is a project-critical variable for any build with a fixed commissioning date. LeadTime.ca maintains sourcing channels for Siemens SIMATIC hardware with worldwide shipping — verify current stock before finalizing your project schedule. If this panel matches your system requirements, view current stock and pricing at LeadTime.ca.

For volume pricing, bundle orders with other SIMATIC components, or to confirm lead time before committing to a build schedule, contact the LeadTime.ca team directly — we ship worldwide.

Wiring and Installation Overview for the 6AV2128-3QB06-0AX1

The following is an overview of key installation requirements. Engineers requiring full wiring diagrams or step-by-step commissioning procedures should refer to the official Siemens installation manual and the WinCC Unified Comfort documentation in TIA Portal.

  • Power connection: The MTP1500 operates on 24 VDC — confirm supply voltage and current capacity from the official datasheet before wiring; external circuit protection is typically required
  • PROFINET connection: Connect the panel's RJ45 port to an industrial Ethernet switch using shielded Cat.5e or Cat.6 cable; the MTP1500 appears as a PROFINET device on the same network as the S7-1200 or S7-1500 PLC
  • Grounding: Follow standard industrial grounding and EMC shielding practices; use shielded cables and connect shield at both ends per Siemens EMC guidelines
  • Cabinet mounting: Verify the panel cutout dimensions accommodate the 15.6-inch widescreen footprint; confirm cabinet depth allows for connector clearance behind the panel
  • Software commissioning: Ensure TIA Portal is open with the correct WinCC Unified Comfort V16 or later project before attempting to download the runtime application to the panel via Ethernet

Compatible System Components and Expansion

The 6AV2128-3QB06-0AX1 is part of the broader SIMATIC Unified Comfort Panel ecosystem. The following components are directly relevant to a complete MTP1500 deployment:

  • Siemens S7-1500 PLC — Primary target controller; native PROFINET peer with the MTP1500 in TIA Portal projects
  • Siemens S7-1200 PLC — Supported PROFINET controller for smaller machine or cell-level applications
  • WinCC Unified Comfort V16 or later — Required engineering and runtime software; included open-source components ship on DVD with 6AV2128-3QB06-0AX1
  • TIA Portal — Engineering platform for both PLC and HMI configuration; no separate HMI programming tool required
  • Industrial Ethernet switch with PROFINET support — Required infrastructure component for network distribution between PLC, MTP1500, and other PROFINET devices
  • MTP1500 variant with Blu-Ray media (6AV2128-3QB06-0AX0) — Alternative media format; verify which version your software infrastructure requires before ordering
  • Neutral/alternative finish variant (6AV2128-3QB36-0AX1) — Same hardware specification with different enclosure finish; aesthetic application choice

Wrong-Part Prevention Checklist Before You Order the 6AV2128-3QB06-0AX1

Engineers and procurement specialists should verify each of the following points against the project specification before placing an order. These are the most common sources of incorrect part selection within the MTP1500 family:

  1. Confirm screen size: Is 15.6 inches the stated requirement? (MTP700=7", MTP1000=10", MTP1200=12.1", MTP1500=15.6", MTP1900=19", MTP2200=22")
  2. Check media delivery: Is DVD acceptable, or is Blu-Ray required? (6AV2128-3QB06-0AX1 includes DVD; 6AV2128-3QB06-0AX0 includes Blu-Ray)
  3. Verify enclosure finish: Is standard black finish required? (6AV2128-3QB06-0AX1 is standard; 6AV2128-3QB36-0AX1 is neutral/alternative finish)
  4. Confirm networking: Is PROFINET the only connectivity needed, or are other protocols required? (MTP1500 supports PROFINET; check for additional ports)
  5. Check software version compatibility: Does the customer run WinCC Unified Comfort V16 or later? (Earlier versions may not support this hardware)
  6. Verify PLC compatibility: Is the target PLC an S7-1200 or S7-1500? (MTP1500 optimized for SIMATIC S-series; non-Siemens PLCs need gateways)

If any item on this checklist raises a question about fit, contact the LeadTime.ca team before ordering — our team can confirm the correct catalog number against your project requirements.

Frequently Asked Questions

Does the 6AV2128-3QB06-0AX1 require a separate WinCC Unified Comfort license to operate?

No separate per-seat or annual license fee is required for WinCC Unified Comfort on this hardware. The open-source software components are included with the DVD that ships with the 6AV2128-3QB06-0AX1. TIA Portal, which is used for engineering configuration, is a separate Siemens product and its licensing cost applies across the full project, not specifically to this panel. Confirm your TIA Portal license level covers WinCC Unified Comfort V16 or later before starting the project.

What is the realistic lead time for the Siemens MTP1500 and how do I plan around it?

When the 6AV2128-3QB06-0AX1 is in active distributor stock, lead times of 2 to 4 weeks are typical for worldwide shipment. If the panel is not in stock and must be sourced through the supply chain, lead times can extend to 6 to 10 weeks. For any project with a fixed commissioning date, verifying stock availability before finalizing the schedule is essential — not optional. Contact LeadTime.ca early in the procurement cycle to confirm current availability.

Can the MTP1500 communicate with non-Siemens PLCs over PROFINET?

PROFINET is an open Industrial Ethernet standard, and in principle non-Siemens devices that support PROFINET can communicate with the MTP1500. However, the MTP1500 is optimized for SIMATIC S7-1200 and S7-1500 PLCs within WinCC Unified Comfort and TIA Portal. Connecting to non-Siemens PLCs typically requires a protocol gateway, additional configuration effort, and may limit functionality. If your architecture is multi-vendor, evaluate whether a different HMI platform offers better native support for your non-Siemens controller before committing to the MTP1500.

What is the difference between 6AV2128-3QB06-0AX1 and 6AV2128-3QB06-0AX0?

The only difference between these two catalog numbers is the media type included with the open-source software package. The 6AV2128-3QB06-0AX1 ships with a DVD, while the 6AV2128-3QB06-0AX0 ships with Blu-Ray media. All other hardware specifications — display, touch, PROFINET connectivity, and WinCC Unified Comfort compatibility — are identical. Order the variant that matches the optical drive hardware available in your engineering or commissioning workstation.

Does the MTP1500 work with the same TIA Portal project as the connected S7-1500 PLC?

Yes. One of the core advantages of the Unified Comfort Panel family is that both the MTP1500 HMI configuration and the S7-1500 PLC program are created and maintained within the same TIA Portal project file. This means PLC tag definitions are directly accessible in the WinCC Unified Comfort screen editor without manual re-entry or file export, which reduces configuration errors and simplifies project maintenance. WinCC Unified Comfort V16 or later is required for the 6AV2128-3QB06-0AX1.

What happens if the PROFINET connection between the MTP1500 and the PLC drops during operation?

The MTP1500 will display a communication fault indication and the operator will lose live data updates and the ability to write commands to the PLC. The panel itself remains powered and operational. Recovery occurs automatically when PROFINET connectivity is restored, provided the PLC communication timeout settings in TIA Portal are configured appropriately. For mission-critical processes, review PLC communication watchdog and substitute value configuration in the WinCC Unified Comfort project to define safe fallback behavior during communication loss.

Why Engineers and Procurement Teams Order From LeadTime.ca

  • LeadTime.ca ships Siemens SIMATIC hardware worldwide — no geographic restriction on orders
  • Sourcing support for hard-to-find or long lead-time parts, including the 6AV2128-3QB06-0AX1 and related Unified Comfort Panel variants
  • Volume pricing available for OEM panel builders and system integrators ordering multiple units per project
  • Direct contact with a technical team that can confirm catalog number correctness against your project specification before shipment
  • Fast quote response for time-critical procurement situations

At-a-Glance Summary: Siemens 6AV2128-3QB06-0AX1

  • Official product name: SIMATIC HMI MTP1500, Unified Comfort Panel
  • Display: 15.6-inch TFT LCD, 16 million colors, 16:9 widescreen, capacitive multi-touch
  • Primary protocol: PROFINET (Industrial Ethernet), native S7-1200 and S7-1500 connectivity
  • Software: WinCC Unified Comfort V16 or later required; open-source components on DVD included
  • No per-seat WinCC Unified Comfort licensing fees after purchase
  • Engineered and configured inside TIA Portal alongside the connected SIMATIC PLC
  • DVD media variant: 6AV2128-3QB06-0AX1; Blu-Ray variant: 6AV2128-3QB06-0AX0
  • Alternative enclosure finish: 6AV2128-3QB36-0AX1
  • Lead time: 2 to 4 weeks in-stock; up to 10 weeks if sourced to order
  • Family context: Mid-range between MTP1200 (12.1") and MTP1900 (19") within the Unified Comfort Panel series