SIEMENS 6AV6640-0CA11-0AX1 Touch Panel | Replacement, Equivalent & Selection Guide
The SIEMENS 6AV6640-0CA11-0AX1 is a SIMATIC HMI TP177 Micro 6″ touch panel designed for compact machine-level visualization in industrial automation systems. This page provides full technical specifications, compatible replacement models, selection guidance, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
- Part Number: 6AV6640-0CA11-0AX1
- Brand: SIEMENS
- Series: SIMATIC HMI TP177 Micro
- Display: 6″ STN color touch screen
- Resolution: 320 × 240 px (QVGA)
- Colors: 256
- Interface: MPI / PROFIBUS DP (RS-485), RS-232
- Memory: 256 KB user memory
- Operating Voltage: 24 V DC
- Power Consumption: Approx. 8 W
- Operating Temperature: 0 °C to +50 °C
- Storage Temperature: −20 °C to +60 °C
- Protection Rating: IP65 (front panel)
- Dimensions (W × H × D): 196 × 141 × 45 mm
- Weight: Approx. 0.8 kg
- Configuration Software: WinCC flexible 2008 Compact or higher
- Certifications: CE, UL, cULus
Compatible Replacement & Equivalent Models
The following models are functionally compatible or serve as direct/near-direct replacements for the 6AV6640-0CA11-0AX1 in most applications. Always verify interface and software compatibility before substitution.
- 6AV6640-0CA11-0AX0 — Previous hardware revision; same form factor, verify firmware compatibility
- 6AV6640-0DA11-0AX1 — TP177 Micro 6″ with RS-422/485 interface variant
- 6AV6647-0AB11-3AX0 — KTP600 Basic PN, 6″ key+touch, PROFINET interface (upgrade path)
- 6AV2123-2GB03-0AX0 — KTP700 Basic PN, 7″ PROFINET (next-gen replacement with larger display)
- 6AV2123-2DB03-0AX0 — KTP400 Basic PN, 4″ compact alternative
- 6AV6545-0CA10-0AX0 — TP270 6″, compatible predecessor for legacy MPI systems
Note: Replacement selection depends on PLC type, communication protocol, and WinCC project version. Contact us for application-specific guidance.
Why Choose the Original Model
- Proven MPI/PROFIBUS compatibility — Native integration with SIMATIC S7-200, S7-300, and S7-400 PLCs without gateway hardware
- IP65 front protection — Suitable for dusty and splash-prone industrial environments
- Compact footprint — Ideal for space-constrained control panels and OEM machine builds
- WinCC flexible project reuse — Existing HMI projects can be reused without full redesign
- Long field track record — Widely deployed in packaging, textile, food & beverage, and material handling industries
Typical Applications
- Machine-level operator panels for S7-200 / S7-300 PLC systems
- Packaging machinery and conveyor control visualization
- Textile and printing machine HMI stations
- Food & beverage processing equipment
- HVAC and building automation control panels
- OEM machine builder integration (compact cabinet mounting)
System Compatibility
- PLC Compatibility: SIMATIC S7-200, S7-300, S7-400; also supports SIMATIC S5 via protocol converter
- Communication: MPI (187.5 kbps – 12 Mbps), PROFIBUS DP, RS-232 (point-to-point)
- Configuration Tool: WinCC flexible 2008 Compact SP3 or higher (not compatible with TIA Portal natively)
- OS: Windows XP / 7 / 10 supported for engineering station
- Firmware Update: Via ProSave or WinCC flexible
Selection Guide
Use the criteria below to determine whether the 6AV6640-0CA11-0AX1 is the right panel for your application, or to select an appropriate alternative:
- Keep original if: Existing WinCC flexible project, MPI/PROFIBUS network, S7-200/300 PLC, and 6″ display size meets requirements
- Upgrade to KTP600 Basic PN (6AV6647-0AB11-3AX0) if: Migrating to PROFINET, need TIA Portal compatibility, or require physical function keys
- Upgrade to KTP700 Basic PN (6AV2123-2GB03-0AX0) if: Larger display needed, modern TIA Portal workflow preferred, PROFINET infrastructure available
- Downgrade to KTP400 (6AV2123-2DB03-0AX0) if: Budget-constrained, minimal visualization requirements, compact panel space
- Use protocol converter if: Replacing with PROFINET panel on existing MPI/PROFIBUS network
Quality Assurance & Sourcing
- Origin: Genuine SIEMENS-manufactured units; factory-sealed or professionally refurbished stock available
- Inspection: All units undergo functional power-on test, display verification, and communication port check before shipment
- Warranty: 12-month warranty on new units; 90-day warranty on refurbished units
- Traceability: Serial number and batch documentation provided upon request
- Packaging: Anti-static ESD packaging with foam protection for safe international shipping
How to Order
- Step 1: Confirm part number: 6AV6640-0CA11-0AX1
- Step 2: Specify quantity and preferred condition (new / refurbished)
- Step 3: Submit inquiry via support@konmask.com or add to cart directly
- Step 4: Receive proforma invoice with lead time and shipping options
- Step 5: Confirm payment — we support T/T, PayPal, and major credit cards
- Lead Time: In-stock units ship within 1–3 business days; sourced units 5–15 business days
Replacement & Compatibility FAQ
Q: Can I replace 6AV6640-0CA11-0AX1 with a KTP700 Basic PN directly?
A: Not directly — the KTP700 uses PROFINET and requires TIA Portal. You would need to migrate your WinCC flexible project and add a PROFINET switch or PN/MPI link if your PLC is MPI-only.
Q: Is the 6AV6640-0CA11-0AX0 a drop-in replacement?
A: Yes in most cases — it is the prior hardware revision with the same form factor and interface. Verify firmware version compatibility with your WinCC flexible project.
Q: Does this panel work with S7-1200 or S7-1500?
A: No. The TP177 Micro uses WinCC flexible and MPI/PROFIBUS, which are not natively supported by S7-1200/1500. Use a KTP series panel with PROFINET for those PLCs.
Q: Can I use a third-party HMI as a replacement?
A: Third-party panels (e.g., Weintek, Kinco) can replace this unit if they support MPI or PROFIBUS DP and have a compatible S7 driver. Project migration will be required.
Q: What is the end-of-life status of this model?
A: The TP177 Micro series has been discontinued by SIEMENS. Konmask.com maintains stock of new and refurbished units to support legacy system maintenance.
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