Order Number: 6AV6647-0AA11-3AX0
Product Name: SIMATIC HMI KTP400 Basic mono PN
Product Line: SIMATIC HMI Basic Panel 1st Gen
Lifecycle Status: Phased-out (discontinued, legacy support only)
Core Type: Monochrome keypad + touch basic HMI panel with PROFINET
1. Basic Identification
| Parameter | Detailed English Specification |
|---|---|
| Full Description | SIMATIC HMI KTP400 Basic mono PN, 3.8″ STN monochrome display, 4 gray levels, resistive touch + membrane keys, PROFINET/Ethernet, compact basic operator panel for small-scale HMI tasks |
| Display Diagonal | 3.8 in (9.7 cm) |
| Display Type | STN LCD, monochrome (4 gray scales) |
| Operation Mode | Resistive touch + integrated membrane keypad |
| Front Protection | IP65 (dust-tight & water-jet resistant) |
| Rear Protection | IP20 |
| Country of Origin | China / Germany (variant-dependent) |
| Net Weight | Approx. 0.32 kg (without packaging) |
| Gross Weight | Approx. 0.53 kg (with packaging) |
| MTBF (25 °C) | 30,000 hours |
| RoHS / CE / C-Tick | Compliant |
2. Display & Input Specifications
| Item | Value |
|---|---|
| Native Resolution | 320 × 240 pixels (QVGA) |
| Display Area | 76.8 × 57.6 mm |
| Gray Scales | 4 levels |
| Backlight | LED, long-life, maintenance-free |
| Touch Type | Resistive analog touch (single-touch only) |
| Keypad Layout | 8 function keys + 26 system keys, fully programmable membrane keys |
| Programmable Function Keys | 4 user-definable keys |
| Front Bezel | Sealed industrial-grade plastic, anthracite gray |
3. Core Hardware & Memory
3.1 Processor & Memory
| Component | Specification |
|---|---|
| CPU | 32-bit RISC, 75 MHz |
| User Config Memory | 512 KB integrated flash |
| Recipe Memory | 40 KB (non-expandable) |
| Retentive Memory | Integrated, battery-free backup |
| External Storage | No SD/USB storage slot |
3.2 Interface List (Complete, No Extra Ports)
| Interface | Quantity & Type |
|---|---|
| Ethernet / PROFINET | 1 × 10/100 Mbit/s, RJ45, PROFINET IO Device compatible |
| USB | 0 (no USB host/device port) |
| Serial (RS-232/485/422) | 0 (no serial ports) |
| SD Card Slot | 0 (not equipped) |
| Parallel / TTY / 20 mA | 0 (none) |
4. Power & Environmental Ratings
4.1 Power Data
| Item | Value |
|---|---|
| Input Voltage | 24 V DC nominal, wide-range 19.2–28.8 V DC (±20%) |
| Typical Power Consumption | 3 W |
| Max Current Draw | 0.15 A at 24 V DC |
| Protection | Reverse polarity, overvoltage, short-circuit protected |
| Isolation | Basic isolation between power and logic |
4.2 Environmental Limits
| Parameter | Specification |
|---|---|
| Operating Temperature | 0 °C … +50 °C (ambient) |
| Storage / Transport Temp | −20 °C … +60 °C |
| Relative Humidity | 10–90% RH, non-condensing |
| Vibration Resistance | IEC 60068-2-6, industrial standard |
| Shock Resistance | IEC 60068-2-27, standard basic panel rating |
| Cooling | Passive (no fan), convection cooled |
| Mounting Orientation | Vertical preferred; horizontal allowed |
5. HMI Functional Parameters (Software Limits)
5.1 Screen & Visuals
| Item | Limit |
|---|---|
| Configurable Screens | Max 50 total screens |
| Objects per Screen | Max 30 objects (text, I/O, graphics, buttons) |
| Complex Objects per Screen | Max 5 (alarm view, etc.) |
| Start Screen | Configurable by PLC or user project |
| Global Screens | Supported |
| Permanent Window | Supported |
5.2 Tag & Variable Limits
| Item | Specification |
|---|---|
| Total Tags per Device | 250 external tags |
| Tags per Screen | Max 30 tags per screen |
| Tag Data Types | Bit, byte, word, integer, float, array |
| Structured Tags | Not supported |
| Array Tags | Supported |
| Limit Value Monitoring | Supported |
| Tag Multiplexing | Supported |
5.3 Alarm & Message System
| Item | Value |
|---|---|
| Alarm Buffer Entries | 256 entries, cyclic buffer |
| Buffer Retentivity | Retentive (non-volatile) |
| Message Indicators | Supported |
| Process Values per Message | 8 |
| Alarm Acknowledge | Supported via keys/touch |
5.4 Recipe Management
| Item | Specification |
|---|---|
| Max Recipes | 5 recipes total |
| Data Records per Recipe | 20 records |
| Entries per Record | 20 entries |
| Total Recipe Memory | 40 KB, non-expandable |
| External Recipe Transfer | Via PROFINET only (no USB/SD) |
6. Mechanical & Mounting Dimensions
| Parameter | Value |
|---|---|
| Mounting Type | Front panel mounting into cabinet |
| Front Dimensions (W×H) | 140 mm × 116 mm |
| Mounting Cutout (W×H) | 123 mm (+1) × 99 mm (+1) mm |
| Total Depth (from front face) | 40–46.2 mm (model-dependent) |
| Mounting Clamps | Standard rear clamping brackets included |
| Panel Compatibility | Standard cutout for KTP400 Basic series |
7. Communication & Compatibility
7.1 Supported Protocols
| Protocol | Capability |
|---|---|
| PROFINET IO | Full IO Device mode, cyclic I/O communication |
| Industrial Ethernet | TCP/IP, DHCP, standard Ethernet transport |
| S7 Communication | S7 protocol over Ethernet for SIMATIC S7 PLCs |
7.2 Compatible Controllers
- SIMATIC S7-1200, S7-300, S7-400
- SIMATIC S7-1500 (via PROFINET)
- Other PLCs with Ethernet/TCP/IP support
7.3 Configuration Software
- WinCC flexible 2008 SP2 Compact
- WinCC Basic V10.5 / STEP 7 Basic V10.5
- TIA Portal (basic compatibility for legacy migration)







