6AV2123-2MB03-0AX0 Siemens HMI

Model Code Decoding

6AV2123-2MB03-0AX0

6AV: SIMATIC HMI Human-Machine Interface series

2123: 2nd-generation Basic Panel product line

2M: KTP, touch operation + physical function keys; B = PROFINET (Ethernet version)

Reference: 6AV2123-2MA03-0AX0 → A = PROFIBUS DP. Hardware interfaces are incompatible and cannot be directly replaced.

03: Hardware revision

0AX0: Standard delivery, no customized specifications

1. Core Hardware Parameters

Interface List

1 × RJ45 PROFINET Ethernet port (supports S7 communication, Modbus TCP, DCP)

1 × USB 2.0 (front-mounted; for project download via USB flash drive, data archiving, external mouse/keyboard)

❗ No PROFIBUS/MPI serial port

III. Mounting Dimensions

Overall panel size: W 330 mm × H 245 mm × Depth ≈60 mm

Cabinet cutout size: 310 mm × 221 mm (Width × Height)

Engineering suggestion: Reserve 0.3~0.5 mm clearance on each side for assembly

1. Configuration Software Requirements

✅ Minimum version: TIA Portal WinCC Basic V13 / STEP7 Basic V13

✅ Compatible versions: V13~V19; WinCC flexible Classic is NOT supported

✅ Compatible PLCs: S7-1200 / S7-1500 / S7-300/400 (Ethernet communication), ET200SP

1. Supported Communication Protocols

S7 Protocol (communication with Siemens PLCs)

Modbus TCP (connect to third-party PLCs and instruments)

DCP, DHCP, SNMP

❌ Web server, scripts and OPC UA are not supported

1. Standard Scope of Supply & Optional Accessories

Standard Included Items

HMI main unit, mounting sealing gasket, fixing clips, user documentation

Items Not Included (Order Separately)

24 VDC power supply

Ethernet cable

USB flash drive

Spare battery for real-time clock

VII. Selection Comparison & Replacement Options

1. DP version of the same size: 6AV2123-2MA03-0AX0 (KTP1200 Basic DP)

Equipped with PROFIBUS interface; cannot directly replace this model due to different communication hardware.

2. Upgrade alternative (Comfort Panel): 6AV2124-0MC01-0AX0 TP1200 Comfort

Larger memory, supports scripts and SD card, richer protocols; inconsistent cutout dimensions, cabinet rework required.

3. New-generation Basic Panel alternative: KTP1200 Basic V3 (6AV2123-2MB32-0AW0)

Minimum TIA V17 required; fully compatible mounting dimensions for direct replacement.

VIII. Application Scope

Cost-effective solution for small & medium OEM machinery, packaging equipment, water treatment, HVAC, and small production line control cabinets; suitable for basic monitoring with physical key operation.

1. Common Selection Pitfalls & Notes
2. No SD card slot, long-term mass data archiving is unavailable. Data can only be exported temporarily via USB; maximum limit for alarms/data logs is 10,000 entries.
3. Resistive touch screen, supports glove operation; multi-touch is not available.
4. Projects programmed for Comfort Panels cannot run directly; projects need recompilation for Basic Panels.
5. Vertical portrait installation is not officially supported; landscape installation recommended only.

Application Scenarios of 6AV2123-2MB03-0AX0 (KTP1200 Basic PN)

Product Positioning: 12-inch basic HMI, resistive touch + physical function keys, PROFINET Ethernet, basic monitoring & operation, cost-effective. Limited functionality, no SD card slot.

Compatible PLCs: S7-1200, S7-1500, ET200SP; Modbus TCP enables connection to third-party controllers.

1. Main Mature Industry Applications
2. Packaging Machinery (Largest Application Volume)

Vertical/horizontal packaging machines, flow wrappers, sleeve labeling machines, bag-making machines

Case packers, auxiliary palletizing equipment, case sealers, stretch wrapping machines

Advantages: Physical keys facilitate frequent start/stop operations by operators; 12-inch large screen displays speed, counting values and fault codes intuitively; PROFINET enables fast linkage with S7-1200.

⚠️ Limitation: Not recommended for scenarios requiring continuous long-term production data archiving (no SD card, only temporary USB export available).

2. Plastic Injection & Extrusion Industry

Auxiliary injection equipment: mold temperature controllers, chillers, grinders, material loaders

Small extruders, pelletizing equipment, pipe haul-off machines

Application characteristics: Cabinet installation under normal workshop temperature & humidity; no complex scripts required; meets demands for temperature monitoring, parameter setting and fault alarm viewing.

3. Water Treatment & Environmental Protection Equipment

Small integrated wastewater treatment equipment, water reuse systems

Reverse osmosis RO pure water equipment, constant pressure water supply control cabinets, rainwater collection systems

Small waste gas treatment control cabinets (activated carbon adsorption, simple spray towers)

Features: Multiple analog value monitoring (pressure, liquid level, pH, flow rate); supports Modbus TCP connection for transmitters and meters.

4. HVAC & Air Purification Systems

Air handling units, cleanroom air conditioners, constant temperature & humidity control cabinets

Fan variable frequency control cabinets, waste heat recovery units, fresh air systems

Suitable for building auxiliary equipment and small control systems in factory clean workshops.

5. Food Processing Machinery (Non-corrosive Environment)

Small dough mixers, baking equipment, cleaning lines, sorting equipment

✅ Suitable: Dry ordinary production workshops

❌ Use with caution under high humidity, continuous steam, strong acid/alkali cleaning environments (cabinet moisture-proof reinforcement required)

6. Material Handling & Conveying Automation (Small & Medium Production Lines)

Belt conveyors, roller sorting lines, elevators, small transfer machines

Auxiliary conveying equipment for automated warehouses, small express sorting branch lines

Suitable for independent stand-alone control; no demand for complex recipe management and massive historical curve storage.

7. Control Cabinets for Stationary Construction Machinery

Auxiliary control cabinets of stationary concrete batching plants, gravel screening equipment

Small air compressors, nitrogen generators, industrial chiller control cabinets

❌ Not applicable for mobile construction machinery (severe vibration; mobile dedicated HMI is preferred).

8. Auxiliary Control Equipment for PV & Energy Storage

PV panel cleaning equipment, temperature control & fire protection cabinets inside energy storage containers

Mostly deployed in fixed factory-mounted complete sets of equipment.

1. Working Conditions Suitable for Selection (Selection Criteria)

✅ Recommended Conditions:

1. The controller is Siemens S7-1200/1500 and PROFINET bus communication is required
2. Large 12-inch display needed; operators prefer dual operation via physical keys and touch
3. Only basic functions required: parameter setting, equipment start/stop, status display, fault alarms and simple recipes
4. Uninterrupted long-term data archiving is not required; regular manual USB data export is acceptable
5. Installed inside control cabinet; ambient temperature 0~50°C, no continuous condensation, strong corrosion or violent vibration

❌ Not Recommended Scenarios (Selection Warnings)

1. Continuous long-term historical data archiving and long-period curve recording (no SD card slot)
2. HMI built-in web server, OPC UA or complex VBS scripts required (not supported by Basic Panels)
3. High humidity, heavy steam or strong acid/alkali corrosive environments (no enhanced anti-corrosion treatment)
4. Capacitive multi-touch required (this unit uses resistive touch)
5. Legacy systems adopting PROFIBUS DP bus (select DP version 6AV2123-2MA03-0AX0; direct replacement impossible)
6. Vertical portrait mounting (officially only landscape installation allowed)
7. Central monitoring for large production lines (upgrade to Comfort TP1200 recommended)

III. Typical Control Configuration Examples

1. KTP1200 Basic PN + S7-1214C + G120C Inverter → Packaging conveyor line control
2. KTP1200 Basic PN + S7-1215C + Modbus instruments → Integrated water treatment equipment
3. KTP1200 Basic PN + S7-1511C + ET200SP → Automated conveying and sorting stand-alone machine

Configuration Software for 6AV2123-2MB03-0AX0 (KTP1200 Basic PN)

Official software name: TIA Portal, no standalone program. HMI screen configuration is completed via the built-in WinCC module inside TIA Portal.

1. Supported Software Versions
2. Minimum requirement: TIA Portal V13 SP1 (V13 without SP1 cannot recognize this panel)
3. Compatible versions: V13 SP1, V14, V15, V15.1, V16, V17, V18, V19 (latest release)
4. Valid configuration modules (any one is acceptable)

WinCC Basic (minimum authorization, cost-effective for independent HMI projects)

WinCC Comfort / Advanced / Professional

STEP7 Basic / Professional (integrated with WinCC Basic for combined PLC & HMI programming)

1. Critical Restrictions (Frequent Pitfalls)

❌ Classic WinCC flexible (all versions) is NOT supported

WinCC flexible only configures the first-generation Basic Panels and MP series panels; 2nd-generation Basic Panels starting with 6AV2123 are fully incompatible. Do not attempt configuration.

❌ WinCC V7/V8 (PC-based SCADA software) is irrelevant to touch panel configuration.

III. Download Methods

Two available download channels:

1. Ethernet (RJ45 PROFINET) (Primary method)
2. Front USB port + USB flash drive (Backup method for on-site commissioning without network cable)
3. Standard Description for Tender Documents (Direct Copy)

HMI model 6AV2123-2MB03-0AX0 is configured with Siemens TIA Portal Totally Integrated Automation software. Minimum version V13 SP1. Compatible with WinCC Basic/Comfort/Advanced/Professional modules. WinCC flexible is not supported.

1. Practical Selection Advice

HMI configuration only: Install TIA Portal + WinCC Basic

Combined PLC & HMI development (S7-1200/1500): Install STEP7 Basic + WinCC Basi