Quick Answer: How to Buy HMI — Siemens or Mitsubishi?
Short answer: For most buyers learning how to buy HMI in 2026, Siemens SIMATIC Comfort Panels (TP700–TP2200) win on PROFINET integration, TIA Portal workflow, and broad model availability, with in-stock units from $500–$1,500. Choose Mitsubishi GOT2000 (GT2705–GT2715) if your plant runs MELSEC PLCs (FX3U, Q/iQ-R) or you need built-in dual Ethernet and SD at 5.7"–15" sizes.
This HMI buying guide is built on real stock data, not spec-sheet theory. For legacy replacements, Siemens TP177B/KTP700 and Mitsubishi GOT1000/A900GOT remain available in limited stock — and these are the lines where counterfeit and refurbished units sold as new are most common. The single most reliable way to reduce risk is to buy from an authentic HMI dealer with visible stock status and model-level pricing, like zzsl-pcl.com, rather than a marketplace listing with no serial verification.
Head-to-Head Comparison Table: Siemens vs Mitsubishi HMI Specs
This side-by-side table uses only real in-stock and limited-stock models from our warehouse. It is the fastest way to start a genuine HMI price comparison rather than comparing catalog headline specs.
| Feature | Siemens 6AV2124-0GC01-0AX0 (TP700 Comfort) | Mitsubishi GT2705-VTBD (GOT2705) |
|---|---|---|
| Display / Resolution | 7" TFT widescreen, 800×480 | 5.7" TFT, 640×480 |
| Colors | Comfort Panel TFT widescreen | 65,536 colors |
| Communication | PROFINET | Built-in Ethernet + USB |
| Touch Type | TFT widescreen touch | Analog resistive (multi-touch gestures) |
| Engineering Software | TIA Portal / WinCC | GT Designer3 |
| Price Range | $500–$1,500 | $500–$800 |
| Stock Status | In Stock | In Stock |
| Best For | New S7-1200/1500 machines, PROFINET-native lines | MELSEC FX3U / iQ-R plants, compact 5.7" retrofits |
Other reference points from current stock: the 6AV2124-0MC01-0AX0 - TP1200 Comfort 12" runs 1280×800 on PROFINET, while the 6AV2124-0XC01-0AX0 - TP2200 Comfort 22" delivers 1920×1080 for control-room visualization. On the Mitsubishi side, the GT2712-STBD - GOT2712 12.1" SVGA adds SD storage, and the GT2715-XTBD - GOT2000 15" XGA brings dual Ethernet. Note that Siemens Comfort panels share one engineering environment (WinCC/TIA Portal), while GOT2000 uses GT Designer3 — a key factor in HMI price comparison beyond sticker cost, because software and training overhead is part of total ownership.
HMI Price Comparison & Availability: What's In Stock Now
Real stock and price ranges from zzsl-pcl.com, updated at SKU level. This is the core of any honest HMI supplier guide: limited-stock items move fast and are often discontinued lines.
Siemens In Stock: 6ES7647-0AA00-0AX2 - KTP700 7" IP65 at ¥3,500–4,500; the Comfort Panel family — TP700, TP900, TP1200, TP1500, TP1900, TP2200 (6AV2124 series) at $500–$1,500.
Siemens Limited Stock: 6AV6640-0DA00-0AX1 - TP177B 6" ¥4,500–5,500; 6AV6 647-0AF11-3AX0 - TP177B 4" $800–$1,200; 6AV6 642-0BA01-3AX1 - TP177A 6" Mono $600–$900; 6ES7 272-1AA10-0YA1 - TD200C Text Display $400–$700.
Mitsubishi In Stock: GT2705-VTBD - GOT2705 5.7" $500–$800; GT2710-VTBD - GOT2710 10.4" $800–$2,000; GT2712-STBD - GOT2712 12.1" $2,000–$5,000; GT2708/GT2710/GT2712/GT2715 GOT2000 series $500–$1,500; GT1055-QSBD - GOT1000 5.7" ¥2,800–3,500.
Mitsubishi Limited Stock: GT15-XHCN - GOT1000 15" ¥8,500–10,500; A960GOT-TBD - A900GOT 5.7" ¥2,200–2,800.
Buying guidance: (1) confirm currency and incoterms; (2) request a photo of the actual label and serial; (3) verify firmware revision before ordering; (4) buy from an authentic HMI dealer that lists stock status per SKU. Siemens Comfort Panels at $500–$1,500 represent the best value-per-inch in this comparison, while Mitsubishi GOT1000 15" units sit at the premium end due to legacy scarcity.
Programming & Integration Differences (Migration Effort for Engineers)
Siemens: Comfort Panels and the KTP700 program in TIA Portal (WinCC Basic/Comfort/Advanced depending on panel class); TP177A/TP177B legacy panels use WinCC flexible, with a migration path to TIA Portal via conversion tools. Native PROFINET integration with S7-1200/1500 and S7-200 SMART controllers — such as the 6ES7 288-1ST20-0AA0 - S7-200 SMART CPU ST20, 6ES7 216-2AD23-0XB0 - CPU 226, and 6ES7 314-6EH04-0AB0 - CPU 314C-2 PN/DP — is essentially drag-and-drop.
Mitsubishi: GOT2000 (GT2705/GT2708/GT2710/GT2712/GT2715) programs in GT Designer3; GOT1000 (GT1055, GT15-XHCN) uses GT Designer2/3 with conversion. Integration with MELSEC FX3U-64MR/ES-A and iQ-R/Q series runs over Ethernet, RS-232/422/485, or CC-Link IE.
Migration notes: cross-brand replacement requires re-authoring screens — budget 40–120 engineering hours for a mid-sized project. Panel replacement within the same brand (e.g., GT1055 → GT2705, or TP177B → TP700 Comfort) is typically a project conversion plus I/O re-mapping, often 4–16 hours. If you must mix brands, use PROFINET-to-MC or Modbus TCP gateways, or OPC UA. One tip from any solid HMI supplier guide: request the project file format (.hmi, .gtw, .gtd) and confirm firmware compatibility before purchase.
Which HMI Should You Choose? Decision Guide by Use Case
(1) New Siemens S7-1200/1500 machine, 7"–12": Siemens TP700 or TP1200, $500–$1,500, In Stock. This is the default recommendation for new builds.
(2) Budget Siemens upgrade with IP65 washdown: KTP700 (6ES7647-0AA00-0AX2), ¥3,500–4,500, IP65, PROFINET.
(3) Mitsubishi FX3U or iQ-R plant, 5.7" compact: GT2705-VTBD ($500–$800) or GT1055-QSBD (¥2,800–3,500) for GOT1000 continuity.
(4) Mitsubishi mid-to-large line, 10.4"–15": GT2710-VTBD ($800–$2,000) or GT2715-XTBD with dual Ethernet and SD.
(5) Large-format control room visualization: Siemens TP1900 or TP2200, both 1920×1080-class widescreen panels, In Stock at $500–$1,500.
(6) Legacy Siemens replacement: TP177B 6" or TP177A 6" Mono for drop-in continuity on MPI/Profibus or RS485 lines — Limited Stock, so confirm before committing.
(7) Legacy Mitsubishi replacement: GT15-XHCN or A960GOT-TBD for GOT1000 and A900GOT lines. Expect premium pricing due to scarcity.
For any of these paths, browse the full Mitsubishi category or Siemens category to confirm current stock status before you specify.
FAQ: How to Buy HMI — Siemens vs Mitsubishi
Where can I buy Siemens HMI panels with verified stock?
Buy from an authentic HMI dealer that publishes stock status per SKU. zzsl-pcl.com lists Siemens Comfort Panels and KTP700 as In Stock with model-level pricing, so you can confirm availability before ordering.
How much does a Mitsubishi GOT2000 HMI cost?
In-stock GOT2000 units range from $500–$800 for the GT2705-VTBD up to $2,000–$5,000 for the GT2712-STBD. GOT1000 15" legacy units (GT15-XHCN) sit at ¥8,500–10,500 due to scarcity.
Can I replace a Siemens TP177B with a TP700 Comfort panel?
Yes, but it is a project conversion, not a drop-in swap. You re-author or convert screens in TIA Portal and re-map I/O — typically 4–16 engineering hours for a same-brand panel upgrade.
Is the Mitsubishi GT1055-QSBD still available?
Yes — the GT1055-QSBD and GT1055-QSBE are In Stock at ¥2,800–3,500. Confirm firmware revision and request a label photo before ordering, since GOT1000 is a legacy line.
Can I use a Mitsubishi GOT panel with a Siemens S7-1200 PLC?
Not natively. You need a protocol bridge (PROFINET-to-MC or Modbus TCP gateway) or OPC UA. Cross-brand pairing works but adds engineering effort and should be budgeted accordingly.
Key Takeaways
- Siemens SIMATIC Comfort Panels (TP700–TP2200) are In Stock at $500–$1,500 and are the best value-per-inch option in this HMI price comparison.
- Mitsubishi GOT2000 (GT2705–GT2715) is In Stock at $500–$2,000 and is the right choice when your plant runs MELSEC FX3U or iQ-R PLCs.
- Siemens Comfort panels share one engineering environment (TIA Portal/WinCC), while Mitsubishi GOT2000 uses GT Designer3 — factor software overhead into total cost.
- Legacy lines — Siemens TP177A/TP177B and Mitsubishi GOT1000/A900GOT — are Limited Stock and carry the highest counterfeit risk, so buy only from an authentic HMI dealer.
- Cross-brand HMI replacement requires screen re-authoring and 40–120 engineering hours; same-brand panel upgrades typically take 4–16 hours.
- Always verify firmware revision and request a photo of the actual label and serial before ordering any discontinued or limited-stock panel.
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