Siemens SIMATIC HMI Full Series Technical Guide — Touch Panel Selection, Function and Migration Published: 2026-09-17 | Category: Technical Guide | Keywords: SIMATIC HMI Full Series · Touch Panel · Selection & Replacement Email: [email protected] | WhatsApp: +8615272221149

SIMATIC HMI is Siemens industrial touch panel for machine visualization and operation. It covers multiple product lines for different automation demands. All panels work with TIA Portal WinCC software for configuration and monitoring. Old legacy panels such as TP177B, MP277 and MP377 enter phase-out. Users can upgrade to Comfort or Unified series.

01 SIMATIC HMI Product Family

Siemens HMI touch panels are divided into four main series.

• Basic Panels: Cost-effective entry models for simple machine control. KTP series for basic display and alarm functions.
• Comfort Panels: Mid-to-high grade touch panels. Rich archive, script and communication functions. Widely used on production machines.
• Unified Comfort Panels: New generation HMI, powered by WinCC Unified. Supports multi-touch, remote web access and Industrial Edge apps.
• Mobile Panels: Portable handheld HMI for flexible on-site operation.

Screen sizes range from 4 inch to 22 inch, touch or key-touch combined types available.

02 Core Functions

All SIMATIC HMI panels provide standard industrial visualization features.

• Real-time data display, alarm notification and message logging
• Recipe management for batch production parameter switching
• User access control and operation log recording
• Historical trend curve and data archive
• Built-in Ethernet for PLC connection and remote monitoring

They seamlessly connect with S7-1200, S7-1500, S7-300 and S7-400 controllers.

03 Communication Interfaces

• PROFINET / Ethernet: Main interface for modern Siemens PLC connection
• PROFIBUS DP: For legacy S7-300/400 system communication
• Serial port: Available on some models for third-party device link
• Web server: View panel data remotely via browser without extra software

04 Legacy Panel Phase-out & Replacement Route

Many old MP / TP / OP panels have stopped new production.

• TP177B, OP177B: Replace with KTP400 / KTP700 Basic or Comfort series
• MP277 / MP377: Official upgrade target is Comfort Panels (TP700, TP1200, TP1500)
• Comfort old version: Can migrate to Unified Comfort Panels for modern digital demands

TIA Portal provides project migration tool. Partial screen layout and scripts need manual check after conversion. Check panel mounting cutout size and software version compatibility before replacement.

05 Selection Key Points

Follow these rules to pick the proper Siemens HMI touch panel.

1. Confirm screen size, touch or key operation type
2. Estimate data archive, recipe and tag quantity to choose performance level
3. Match communication port with your PLC system
4. Check cabinet cutout dimension for installation
5. Confirm TIA Portal / WinCC version compatibility

06 Maintenance Tips

• Back up HMI project and recipe data before firmware update
• Use industrial power supply and protect touch screen from dust and moisture
• Calibrate touch screen periodically for stable touch response
• Keep spare touch panels ready for old phase-out HMI to avoid production downtime

07 About Us

Wuhan Hantuo Automation supplies genuine Siemens automation products. Our range includes SIMATIC HMI touch panels, PLCs, drives, servos and sensors. We serve global OEMs, system integrators and end users. We offer fast quotation, global logistics and professional technical support. We help customers finish panel replacement, machine upgrade and spare part procurement.

Email: [email protected] | WhatsApp: +8615272221149