SIMATIC KTP400 vs KTP600: Entry-Level Siemens HMI Comparison
SIMATIC KTP400 vs KTP600 Basic HMI Panel Comparison Guide
Controls engineers specifying a Siemens SIMATIC HMI for a small machine or OEM panel regularly land on the same shortlist: the SIMATIC HMI KTP400 Basic Panel or the SIMATIC HMI KTP600 Basic Panel. Both sit in the SIMATIC HMI Basic Panels family, both use PROFINET for PLC integration, and both are configured in WinCC Basic within TIA Portal. The decision comes down to three physical realities — how much enclosure door space you have, how far away the operator stands, and how much information needs to appear on one screen at a time.
If you have already confirmed the right panel for your project, check current pricing and availability directly on the LeadTime.ca product page — ships worldwide.
KTP400 Basic vs KTP600 Basic: Which Panel Fits Your Project?
The SIMATIC HMI KTP400 Basic Panel is the right choice when enclosure space is the primary constraint and operator interaction is straightforward. The SIMATIC HMI KTP600 Basic Panel is the right choice when operators need to read more data, at longer distances, with larger fonts or across multiple status areas on one screen. Use these criteria to qualify your selection:
- Your enclosure door is small or already constrained — the KTP400 Basic requires a smaller cut-out and occupies less panel depth.
- The operator stands close to the panel and the screens involve a small number of setpoints, alarms, or start/stop commands — the 4" TFT color display with 65,536 colors on the KTP400 Basic is sufficient at short viewing distances.
- Multiple pumps, valves, or process values must appear simultaneously on one screen — the KTP600 Basic with its approximately 5.7" TFT display provides the additional screen area to lay out more objects with readable fonts.
- Your project is engineered in TIA Portal using WinCC Basic — both panels share the same engineering environment, so the toolchain does not change between them.
- Your PLC is a SIMATIC S7-1200 or S7-1500 on a PROFINET network — both panels connect identically via their PROFINET interface.
- You are standardizing across a mixed machine fleet — the KTP600 Basic is the more flexible standard when some machines are more complex than others.
If your application requires capabilities beyond either Basic Panel — such as recipe management, scripting, or a larger number of tags and screens — consider moving to the Siemens Comfort Panel family rather than forcing a Basic panel beyond its design scope.
On this page:
- Where KTP400 and KTP600 Sit in the SIMATIC HMI Lineup
- Screen Size, Resolution, and Readability: The Core Difference
- Touch, Keys, and Operator Ergonomics
- Panel Footprint, Cut-Out, and IP65 Protection
- PROFINET Integration and TIA Portal Engineering
- Side-by-Side Specification Comparison
- Five Deployment Scenarios: Which Panel Wins and Why
- Expert Verdict: Scenario-Based Recommendation
- What Practitioners Say About KTP400 and KTP600
- Migrating Between Panel Sizes or Upgrading from Older Panels
- Wrong-Part Prevention: Selection Mistakes That Cost Time and Money
- Frequently Asked Questions
- Price, Lead Time, and How to Order from Anywhere in the World
Where KTP400 and KTP600 Sit in the SIMATIC HMI Lineup
Both the SIMATIC HMI KTP400 Basic Panel and the SIMATIC HMI KTP600 Basic Panel are members of the SIMATIC HMI Basic Panels family — Siemens' entry-level graphical HMI tier designed for simple visualization tasks on small machines and utility systems. They occupy the lower end of the Siemens HMI portfolio, positioned above text-only micro panels and below the Comfort Panel family, which offers more screen real estate, scripting capability, and broader protocol support.
Basic Panels are engineered entirely within WinCC Basic in TIA Portal, which is the same environment used to program SIMATIC S7-1200 and S7-1500 PLCs. This shared engineering environment is a deliberate advantage: a controls engineer working on the PLC program does not need a separate HMI tool or additional license to configure the connected KTP400 or KTP600. Both panels connect to SIMATIC controllers via PROFINET, fitting naturally into cell-level network topologies that OEM machine builders and panel shops commonly deploy.
The practical distinction between the two panels is not architectural — it is physical. The KTP400 Basic Panel uses a 4" TFT color display with 65,536 colors and key/touch operation in a compact housing suited to tight enclosures. The KTP600 Basic Panel uses an approximately 5.7" TFT color display in a larger housing that requires more enclosure door space but returns meaningful gains in readability and screen layout capacity. Everything else — PLC compatibility, engineering toolchain, IP65 front protection, and 24 V DC power supply — is shared across both models.
Screen Size, Resolution, and Readability: The Core Difference
The SIMATIC HMI KTP400 Basic Panel uses a 4" TFT color display capable of rendering 65,536 colors. At short viewing distances — typically within approximately 0.5 to 1 metre — this display is well suited to simple operator panels where a few values, a start/stop indication, and a handful of alarms are all that appear on any given screen. The widescreen orientation of the KTP400 Basic Panel supports layouts that present numerical values and status indicators in a clean horizontal arrangement without crowding.
The SIMATIC HMI KTP600 Basic Panel offers approximately 5.7" of TFT display area, which translates directly into the ability to display more objects per screen at larger font sizes. For an operator monitoring several pumps or valves simultaneously, or working at a viewing distance beyond one metre, the additional screen area of the KTP600 Basic Panel is a functional improvement rather than a luxury. Larger fonts reduce misread values, fewer screen navigation steps reduce errors, and the ability to show alarm information alongside process data without switching screens improves response time.
Readability is also affected by ambient lighting. Both panels are industrial-grade TFT displays, but in bright factory environments or near windows, a larger display with larger text provides a meaningful practical advantage. Engineers specifying panels for aging workforces or environments where operators wear protective eyewear should weight screen size more heavily in their selection criteria. If the number of data objects you need to display requires text at or near minimum readable size on the KTP400 Basic Panel, the KTP600 Basic Panel is the correct choice.
Touch, Keys, and Operator Ergonomics
The SIMATIC HMI KTP400 Basic Panel uses key/touch operation — a combination of a touch-sensitive display surface and physical function keys mounted on the panel housing. Physical keys provide tactile feedback, which is valuable in environments where operators wear gloves or where machine noise makes visual confirmation of a button press difficult. For simple navigation tasks — moving between a small number of screens, acknowledging an alarm, or triggering a start/stop command — function keys reduce the cognitive load on the operator and are more reliable under contamination than pure touch surfaces.
The SIMATIC HMI KTP600 Basic Panel is a touch-operated panel with function keys available on many variants of the series. The exact key count depends on the specific catalog number ordered, and engineers should verify this against the Siemens datasheet for the exact variant they are specifying. More function keys allow more dedicated shortcuts — useful when operators switch between several operating modes or need fast access to specific screens without navigating menus. For frequently visited screens or commonly executed commands, dedicated function key assignments reduce navigation time and improve operator consistency.
Ergonomically, neither panel is wrong for industrial use. The choice between them on the basis of operator interface should be driven by workflow: if operators primarily tap a few fixed controls in a predictable sequence, the KTP400 Basic Panel with its key/touch combination is sufficient. If operators need to navigate frequently, interact with graphical elements across the screen, or benefit from clearly labeled dedicated keys for multiple functions, the KTP600 Basic Panel offers more interface flexibility.
Panel Footprint, Cut-Out, and IP65 Protection
The physical difference between the two panels has direct consequences for enclosure design. The SIMATIC HMI KTP400 Basic Panel is the compact choice — its smaller housing and cut-out requirements make it compatible with tight enclosure doors and existing cut-outs that may have been designed for text panels or smaller graphic displays. Engineers retrofitting panels without rebuilding the entire enclosure door frequently select the KTP400 Basic Panel because it imposes the fewest mechanical constraints.
The SIMATIC HMI KTP600 Basic Panel requires a larger cut-out and more door surface area. In a new enclosure design, this is accommodated at the drawing stage without difficulty. In a retrofit situation, it means confirming that the door has sufficient area above and beside the cut-out zone, that cable routing behind the door accommodates the panel depth, and that no structural ribs or mounting hardware conflict with the larger housing. Engineers should pull both panel dimension drawings from the Siemens datasheet and overlay them on the enclosure door layout before committing to a panel size.
Both panels carry IP65 front protection as typical for the SIMATIC HMI Basic Panels family. IP65 front protection means the panel face is protected against dust ingress and low-pressure water jets from any direction — suitable for dusty production environments, light washdown areas, and general industrial locations. Rear protection and overall enclosure protection depend on the enclosure itself, not the panel rating. Engineers in food processing or more aggressive washdown environments should confirm whether IP65 front protection is sufficient for their specific classification or whether an alternative form of protection is required.
PROFINET Integration and TIA Portal Engineering
Both the SIMATIC HMI KTP400 Basic Panel and the SIMATIC HMI KTP600 Basic Panel use a PROFINET interface to connect to SIMATIC controllers. This shared communication foundation means that selecting between them does not change the network design, the PLC configuration, or the tag mapping approach. A SIMATIC S7-1200 or S7-1500 connected to a KTP400 Basic Panel is configured identically in TIA Portal as the same controller connected to a KTP600 Basic Panel — only the HMI device definition and screen layouts change.
Typical network topologies for Basic Panel deployments include direct connection between the HMI and PLC, connection through an industrial Ethernet switch in a cell network, or integration into a wider plant network where the HMI is one node among several. For connections to older SIMATIC controllers outside the S7-1200/S7-1500 family, engineers should verify compatibility and whether external gateways or protocol converters are required — Basic Panels are Ethernet-based and do not natively support older serial or fieldbus interfaces without additional hardware.
Engineering both panels in TIA Portal using WinCC Basic means the project structure, tag editor, and screen editor are consistent regardless of panel choice. A WinCC Basic license used for a KTP400 Basic Panel project applies equally to a KTP600 Basic Panel project. The practical implication is that the engineering cost of switching panel sizes mid-project is primarily the time required to adapt screen layouts to the different display dimensions — not a toolchain or licensing change. Engineers should factor this layout rework cost into any mid-project panel size decision, as misaligned objects and poorly scaled graphics are a common consequence of changing screen size without replanning the screen architecture.
Side-by-Side Specification Comparison
| Attribute | SIMATIC HMI KTP400 Basic Panel | SIMATIC HMI KTP600 Basic Panel |
|---|---|---|
| Display size | 4" TFT color | Approx. 5.7" TFT color |
| Display colors | 65,536 colors | TFT color display (verify exact color depth in datasheet) |
| Operation type | Key/touch | Touch with function keys (verify count per catalog number) |
| Product family | SIMATIC HMI Basic Panels | SIMATIC HMI Basic Panels |
| IP rating (front) | IP65 | IP65 |
| Engineering tool | WinCC Basic in TIA Portal (V13 or higher) | WinCC Basic in TIA Portal (verify minimum version) |
| Communication interface | PROFINET | PROFINET |
| Power supply | 24 V DC (verify consumption in datasheet) | 24 V DC (verify consumption in datasheet) |
| Typical PLC pairing | SIMATIC S7-1200, S7-1500 | SIMATIC S7-1200, S7-1500 |
| Enclosure impact | Smaller cut-out, compact footprint | Larger cut-out, more door space required |
Full technical specifications, current catalog numbers, and dimensional drawings are available on the product pages at LeadTime.ca. Always verify exact function key counts, resolution, memory, and lifecycle status from the current Siemens datasheet for your specific catalog number before finalizing a design.
| Decision Factor | Choose KTP400 Basic Panel | Choose KTP600 Basic Panel |
|---|---|---|
| Enclosure door space | Tight or existing small cut-out | Moderate to generous door space available |
| Operator viewing distance | Close range, within approximately 1 m | Longer distances or variable operator positions |
| Screen content density | Few values, simple alarms, basic navigation | Multiple status areas, larger fonts, more objects per screen |
| Operator interface preference | Key/touch with physical function keys | Touch-primary with function key options |
| Machine fleet standardization | Very simple or single-purpose machines | Mixed fleet of simple and moderately complex machines |
| Retrofit scenario | Minimal mechanical changes preferred | Enclosure door can be modified or is being redesigned |
If your project requirements — screen count, tag volume, or interface complexity — are pushing against the limits of either Basic Panel, the Siemens Comfort Panel family is the appropriate next step. Check current availability of both Basic Panels at LeadTime.ca before locking in your design.
Five Deployment Scenarios: Which Panel Wins and Why
Scenario-based selection is the most reliable way to choose between these two panels. The specifications are similar enough that abstract comparison produces little clarity — what resolves the decision is mapping real project constraints to the physical and functional differences between the panels.
Compact OEM machine with a small enclosure door. When the control cabinet is small, the operator stands within approximately 0.5 to 1 metre of the panel, and the HMI displays a few setpoints, start/stop status, and basic alarms, the SIMATIC HMI KTP400 Basic Panel is the correct choice. Its smaller cut-out and compact footprint fit without enclosure redesign, and the 4" TFT display with 65,536 colors is sufficient at close range.
Process skid with multiple status areas and alarms visible simultaneously. When several pumps or valves must appear on one screen, or when the operator's viewing distance occasionally exceeds one metre, the SIMATIC HMI KTP600 Basic Panel's approximately 5.7" display delivers the screen area needed to display more objects at readable font sizes without forcing the operator to navigate between screens.
OEM standardization across a mixed machine fleet. When a panel builder or OEM wants one standard HMI across machines that range from simple to moderately complex, the KTP600 Basic Panel is the more flexible standard. Its larger screen accommodates both simple and denser layouts, reducing engineering variants even when some machines in the fleet could technically use the smaller KTP400.
Upgrade from an older text-only or micro panel where readability is the complaint. When the driver for replacement is operator difficulty reading small text or navigating a non-graphical interface, the KTP600 Basic Panel's larger display provides the most visible improvement. Transitioning from a text panel to a graphical HMI benefits disproportionately from the extra screen area because the layout possibilities expand significantly.
Cost-sensitive retrofit with modest requirements and a small existing cut-out. When the project is budget-constrained, the enclosure door is small, and the function requires only a few simple screens and alarms, the SIMATIC HMI KTP400 Basic Panel meets requirements with minimal mechanical changes and aligns with the modest project scope.
| Application | Typical Deployment |
|---|---|
| Small packaging machine | KTP400 Basic Panel, compact door, close operator range, simple start/stop and alarms |
| Pump station or process skid | KTP600 Basic Panel, multiple valve and pump statuses, alarms visible on one screen |
| HVAC or utility control panel | KTP400 Basic Panel, minimal display content, space-constrained enclosure |
| Light manufacturing production line | KTP600 Basic Panel, moderate data density, operator stands at variable distances |
| OEM machine fleet standardization | KTP600 Basic Panel as single standard to support both simple and more complex machines |
| Text panel replacement retrofit | KTP600 Basic Panel where readability improvement is the primary project driver |
Expert Verdict: Scenario-Based Recommendation
The SIMATIC HMI KTP400 Basic Panel is the right tool for controls engineers and OEM machine designers who face a specific combination of constraints: a tight enclosure door, a close-range operator, and a small number of screens with limited data objects per page. The 4" TFT display with 65,536 colors and key/touch operation is not a compromise in these conditions — it is exactly what is needed. Specifying a larger panel for a machine where the KTP400 Basic Panel is genuinely sufficient adds enclosure cost, mechanical complexity, and no functional benefit for the operator.
The SIMATIC HMI KTP600 Basic Panel earns its place when readability and screen content density become the design drivers. Engineers who have watched operators squint at small text, navigate multiple screens to find data that should appear together, or struggle with touch targets at extended viewing distances will immediately recognize the practical value of the additional display area. The KTP600 Basic Panel is also the stronger standardization choice for OEM builders who want one panel model to serve a range of machine complexities — the larger screen flexibly supports both simple and moderately dense layouts without requiring a panel change. When the upgrade trigger is an operator complaint about an older text panel, the KTP600 Basic Panel's improved readability is the most defensible specification in the project record. If either panel's capacity — in tags, screens, or interface features — proves insufficient as the application grows, the correct move is to the Siemens Comfort Panel family rather than stretching a Basic Panel beyond its design scope.
From a procurement standpoint, both panels are entry-level products in an actively supported Siemens family, which means availability is generally predictable through established distribution channels — but specific catalog numbers and regional stock levels should always be confirmed before finalizing a build schedule. Selecting through a specialist distributor rather than a general supplier gives engineers access to current lifecycle status, lead time data, and alternative catalog numbers when a specific variant is constrained. Check current availability and pricing for both the SIMATIC HMI KTP400 Basic Panel and the SIMATIC HMI KTP600 Basic Panel at LeadTime.ca — the product pages reflect live inventory and ship worldwide.
For volume orders or to confirm lead times before committing to a build schedule, contact the LeadTime.ca team directly — we ship worldwide and can assist with availability checks and suitable alternatives across the SIMATIC HMI Basic Panels family.
What Practitioners Say About KTP400 and KTP600
Across controls engineering communities including r/PLC, r/automation, PLCTalk, and Siemens Industry Online Support forums, the recurring theme when practitioners discuss SIMATIC Basic Panels is not specification debate — it is physical fit. Engineers consistently describe the KTP400 Basic Panel as the natural choice for tight panels and simple machines, praising its compact size and the straightforwardness of integrating it with SIMATIC PLCs in TIA Portal. Complaints at the KTP400 level center on one issue: screen size limitations when the application turns out to be more data-dense than originally anticipated, or when the operator is further from the panel than planned. Touch-only interaction is occasionally noted as less convenient in glove-heavy environments.
The KTP600 Basic Panel draws consistent praise for its larger display and the readability gains it provides — practitioners describe it as a good general-purpose standard for small to mid-size machines. The main criticism is proportional: it is occasionally perceived as more than needed for very simple machines, and it demands more enclosure door space. The most common switching story in these communities is an engineer who started with a KTP400 Basic Panel, found the screens becoming crowded as the machine application grew, and upgraded to the KTP600 Basic Panel — at the cost of screen layout rework and enclosure modification. This pattern reinforces the practitioner consensus: define screen content density requirements before choosing panel size, not after.
OEM machine builders in packaging, food and beverage, and light manufacturing who have standardized on one Basic Panel size across their product line report that the KTP600 Basic Panel is the more common standard choice precisely because it handles the widest range of visualization requirements without stepping up to a Comfort Panel. Standardization on a single panel model reduces spare parts complexity, simplifies operator training across sites, and keeps engineering reuse high — benefits that outweigh the modest additional enclosure space requirement for most panel builders who plan their door layouts from scratch on new machine designs.
Migrating Between Panel Sizes or Upgrading from Older Panels
Replacing an older Siemens text panel or micro panel with either the SIMATIC HMI KTP400 Basic Panel or the SIMATIC HMI KTP600 Basic Panel typically involves re-engineering the HMI project in TIA Portal with WinCC Basic rather than a simple program transfer. The architecture of Basic Panel projects in TIA Portal is the upgrade path that Siemens has established for exactly this type of migration, and controls engineers already working in TIA Portal for their SIMATIC PLC programs will find the toolchain familiar. Key wiring and installation considerations for Basic Panel replacements include:
- Confirm the new panel's cut-out dimensions against the existing enclosure door before ordering — the KTP400 Basic Panel and KTP600 Basic Panel have different mounting footprints and neither is a dimensional match for older text panel formats.
- Verify that the 24 V DC power supply available in the enclosure is adequate for the selected panel and confirm cable routing behind the door accommodates the panel depth.
- Check PROFINET network topology and switch capacity — Basic Panels connect via Ethernet and require an IP address assignment and network segment planning if not directly connected to the PLC.
- Plan screen layout templates before migrating — changing from a KTP400 Basic Panel to a KTP600 Basic Panel mid-project requires adapting all screen layouts to the larger display dimensions, which is engineering rework rather than a simple device swap.
- Confirm the TIA Portal version in use is compatible with the selected panel — WinCC Basic V13 or higher supports the KTP400 Basic Panel; verify the minimum version for your specific KTP600 catalog number in the Siemens datasheet.
When standardizing a machine fleet on one panel size, the lifecycle and spare parts implications are meaningful. A consistent panel model across all machines means one spare unit covers the entire fleet, operators train once on one interface layout, and engineering templates are fully reusable. If some machines in the fleet genuinely need a KTP400 Basic Panel and others need a KTP600 Basic Panel, maintaining two spare units and two engineering templates is the practical cost of non-standardization — a legitimate trade-off, but one that should be made consciously rather than by default.
Wrong-Part Prevention: Selection Mistakes That Cost Time and Money
The following checklist captures the most common and costly mistakes engineers make when selecting between the SIMATIC HMI KTP400 Basic Panel and the SIMATIC HMI KTP600 Basic Panel. Work through each item before placing an order.
- Confirm the required viewing distance and font size before choosing screen size.
- Check enclosure door size and existing cut-outs against both panel dimensions.
- Verify PLC communication (PROFINET, network topology) for both panels.
- Confirm that the chosen panel can be engineered in the same TIA Portal level already in use.
- Consider operator workflow: number of function keys vs reliance on touch-only.
- Check IP65 front protection and environmental conditions (dust, washdown).
- Confirm current lifecycle and availability for replacement units in your region.
If any item on this checklist raises a question you cannot resolve from the Siemens datasheet alone, contact the LeadTime.ca team before ordering — confirming the right catalog number before purchase is faster and less expensive than a panel return and enclosure rework.
Frequently Asked Questions
Does the KTP400 Basic Panel support the same PLCs as the KTP600 Basic Panel?
Yes. Both the SIMATIC HMI KTP400 Basic Panel and the SIMATIC HMI KTP600 Basic Panel use a PROFINET interface and are suited to integration with SIMATIC S7-1200 and S7-1500 controllers. The PLC compatibility and network integration approach is the same for both panels — the screen size difference does not affect which controllers they can connect to.
Can I reuse a KTP400 Basic Panel TIA Portal project on a KTP600 Basic Panel?
The TIA Portal project structure and WinCC Basic engineering environment are shared across both panels, and the engineering license applies to both. However, changing the target device from a KTP400 Basic Panel to a KTP600 Basic Panel requires adapting all screen layouts to the different display dimensions. Objects will not automatically reposition or rescale to the larger display, so screen-by-screen layout review and adjustment is required. Plan this rework time before committing to a panel size change mid-project.
How do I decide between a 4" and a 5.7" HMI screen for my application?
Define three parameters before choosing: the operator's typical viewing distance from the panel face, the number of data objects (values, alarms, status indicators) that must appear on a single screen, and the minimum readable font size for your operators. If close viewing distance and simple screens are confirmed, the 4" KTP400 Basic Panel is sufficient. If viewing distance is longer, if multiple status areas must appear simultaneously, or if larger fonts are needed for readability, the approximately 5.7" KTP600 Basic Panel is the correct choice.
Are both the KTP400 and KTP600 Basic Panels suitable for dusty or washdown environments?
Both panels carry IP65 front protection as typical for the SIMATIC HMI Basic Panels family, meaning the panel face is rated against dust ingress and low-pressure water jets from any direction. This covers many general industrial environments. For more aggressive washdown applications — particularly in food processing where high-pressure cleaning is used — confirm whether IP65 front protection meets your facility's classification or whether a higher-rated enclosure approach is required.
When should I move to a Comfort Panel instead of choosing between KTP400 and KTP600?
If your application requires features beyond basic screen display and navigation — such as recipe management, scripting, broader protocol support, or a screen size larger than what the KTP600 Basic Panel provides — the Siemens Comfort Panel family is the appropriate next step. Basic Panels including both the KTP400 and KTP600 are designed for simple visualization tasks. Attempting to stretch a Basic Panel to cover Comfort Panel use cases creates design compromises that affect operator usability and long-term maintainability.
What are the most common ordering mistakes when specifying a KTP400 or KTP600 Basic Panel?
The two most common mistakes are selecting panel size based on catalog price without confirming operator readability requirements, and ordering a KTP600 Basic Panel without checking whether the enclosure door has sufficient area for the larger cut-out. Both mistakes result in rework — either a panel replacement or enclosure modification — that costs more than the price difference between the two panels. Confirm viewing distance, screen content requirements, and enclosure dimensions before placing the order.
Price, Lead Time, and How to Order from Anywhere in the World
- LeadTime.ca stocks and sources SIMATIC HMI Basic Panels including KTP400 and KTP600 series and ships worldwide — no regional restriction on orders.
- Current pricing is displayed live on the product pages at LeadTime.ca; no specific price is quoted here as availability and lead times change.
- For volume pricing, build-schedule lead time confirmation, or help identifying the correct catalog number for a specific variant, contact the LeadTime.ca team directly.
- Lifecycle status and regional stock availability for specific Siemens catalog numbers should be confirmed at time of order — the LeadTime.ca team can assist with alternative catalog numbers if a specific variant is constrained.
- Both CTAs:
At a Glance: KTP400 vs KTP600 Basic Panel Decision Summary
- The SIMATIC HMI KTP400 Basic Panel uses a 4" TFT color display with 65,536 colors and key/touch operation — correct for compact enclosures and simple operator screens at close viewing range.
- The SIMATIC HMI KTP600 Basic Panel uses an approximately 5.7" TFT color display — correct for applications requiring more data objects per screen, larger fonts, or longer operator viewing distances.
- Both panels use PROFINET communication, 24 V DC power supply, IP65 front protection, and WinCC Basic in TIA Portal (V13 or higher for KTP400 Basic Panel) — the engineering toolchain and PLC integration approach are identical.
- Both panels are suited to SIMATIC S7-1200 and S7-1500 PLC pairings in standard PROFINET cell topologies.
- The primary decision driver is screen size relative to operator viewing distance and screen content density — not price, not protocol, not engineering tool.
- Changing panel size mid-project requires screen layout rework and potentially enclosure modification — confirm panel size before detailed HMI design begins.
- When either panel's capacity is insufficient for the application, the Siemens Comfort Panel family is the correct upgrade path.
- Current pricing and availability for both panels: check the product pages at LeadTime.ca.
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