What Is a Programmable Logic Controller and How Does It Work
Learn how a PLC works, including scan cycle, I/O sizing, IEC 61131-3 programming, and hardware selection for ABB, Schneider, and Siemens. Shop at Stoklink.
The Siemens 6AV2128-3QB27-0AX0 is a SIMATIC HMI MTP1500 PRO Unified Comfort operator panel with a 15.6-inch widescreen TFT touchscreen at 1366 x 768 pixels and 16.7 million colors. It mounts on a non-expandable support arm with the flange on top, sealed to IP65 front and rear, and runs on 24V DC with a PROFINET interface configurable from WinCC Unified Comfort V18.
The fixed, non-expandable support-arm flange on top makes this the base configuration for a swing-arm HMI station where the mounting geometry is set once. IP65 front and rear plus NEMA Type 4/4x/12 let it sit in a washdown-adjacent or outdoor-facing cell without the stainless hygienic housing used on the MTP1500 Hygienic variant. At 15.6 inches it is the largest screen in the MTP1000-1500 PRO line, suited to overview or recipe-heavy screens where the 12.1-inch panel runs out of room. Choose the -0BX0 extension unit instead when the arm needs to expand later.
| Product type designation | MTP1500 Unified Comfort PRO |
|---|
| Design of display | TFT |
|---|---|
| Screen diagonal | 15.6 in |
| Display width | 344.2 mm |
| Display height | 193.5 mm |
| Number of colors | 16 777 216 |
| Resolution (pixels): Horizontal image resolution | 1 366 pixel |
| Resolution (pixels): Vertical image resolution | 768 pixel |
| Backlighting: MTBF backlighting (at 25 °C) | 50 000 h |
| Backlighting: Backlight dimmable | Yes; 10 ... 100% |
| Keyboard: Numeric keyboard | Yes; Onscreen keyboard |
|---|---|
| Keyboard: alphanumeric keyboard | Yes; Onscreen keyboard |
| Touch operation: Design as touch screen | Yes |
| Touch operation: Design as multi-touch screen | Yes |
| Part number | 6AV2128-3QB27-0AX0 |
|---|---|
| Type designation | MTP1500 Unified Comfort PRO |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4047623413301 |
| ETIM class | EC001412 |
| eCl@ss | 27330201 |
| Mounting | Support arm |
|---|---|
| Mounting position | vertical |
| Mounting in portrait format possible | No |
| Mounting in landscape format possible | Yes |
| maximum permissible angle of inclination without external ventilation | 35° |
| Type of supply voltage | DC |
|---|---|
| Rated value (DC) | 24 V |
| permissible range, lower limit (DC) | 19.2 V |
| permissible range, upper limit (DC) | 28.8 V |
| Current consumption (rated value) | 0.7 A |
|---|---|
| Current consumption, max. | 1.3 A |
| Starting current inrush I2t | 0.5 A2·s |
| Active power input, typ. | 16.8 W |
|---|
| Processor type | X86 |
|---|
| Flash | Yes |
|---|---|
| RAM | Yes |
| Info LED | No |
|---|---|
| Power LED | No |
| Error LED | No |
| Acoustics: Buzzer | Yes |
| Acoustics: Speaker | No |
| Clock: Hardware clock (real-time) | Yes |
|---|---|
| Clock: Software clock | Yes |
| Clock: retentive | Yes; Back-up duration typically 6 weeks |
| Clock: synchronizable | Yes |
| Number of industrial Ethernet interfaces | 2; 2 ports (switch) + independent port |
|---|---|
| Number of RS 485 interfaces | 1; RS 422 / 485 combined |
| Number of RS 422 interfaces | 0; together with RS 485 |
| Number of USB interfaces | 4; USB 3.1 Gen. 1 (type A) |
| Number of SD card slots | 2 |
| Industrial Ethernet: Industrial Ethernet status LED | 2 |
| Industrial Ethernet: Number of ports of the integrated switch | 2 |
| PROFINET | Yes |
|---|---|
| Supports protocol for PROFINET IO | No |
| Protocols (Ethernet): TCP/IP | Yes |
| Protocols (Ethernet): DHCP | Yes |
| Protocols (Ethernet): SNMP | Yes |
| Protocols (Ethernet): DCP | Yes |
| Protocols (Ethernet): LLDP | Yes |
| Redundancy mode Media redundancy: MRP | Yes |
| Further protocols: CAN | No |
| Emission of radio interference acc. to EN 55 011: Limit class A, for use in industrial areas | Yes |
|---|
| IP (at the front) | IP65 |
|---|---|
| IP (rear) | IP65 |
| NEMA (front): Enclosure Type 4 at the front | Yes |
| NEMA (front): Enclosure Type 4x at the front | Yes |
| NEMA (front): Enclosure Type 12 at the front | Yes |
| CE mark | Yes |
|---|---|
| UKCA mark | Yes |
| cULus | Yes |
| FM approval | Yes |
| RCM (formerly C-TICK) | Yes |
| KC approval | Yes |
| EAC (formerly Gost-R) | Yes |
| CCC | Yes |
| Use in hazardous areas: ATEX Zone 2 | Yes |
| Use in hazardous areas: ATEX Zone 22 | Yes |
| Use in hazardous areas: IECEx Zone 2 | Yes |
| Use in hazardous areas: IECEx Zone 22 | Yes |
| Use in hazardous areas: cULus Class I Zone 2, Division 2 | Yes |
| Use in hazardous areas: cULus Class II Division 2 | No |
| Use in hazardous areas: FM Class I Division 2 | Yes |
| Use in hazardous areas: FM Class II Division 2 | Yes |
| Marine approval: Germanischer Lloyd (GL) | No |
| Marine approval: American Bureau of Shipping (ABS) | No |
| Marine approval: Bureau Veritas (BV) | No |
| Marine approval: Det Norske Veritas (DNV) | No |
| Marine approval: Korean Register of Shipping (KRS) | No |
| Marine approval: Lloyds Register of Shipping (LRS) | No |
| Marine approval: Nippon Kaiji Kyokai (Class NK) | No |
| Marine approval: Polski Rejestr Statkow (PRS) | No |
| Marine approval: Chinese Classification Society (CCS) | No |
| Ambient temperature during operation Operation (vertical installation): For vertical installation, min. | 0 °C |
|---|---|
| Ambient temperature during storage/transportation: min. | -20 °C |
| Ambient temperature during storage/transportation: max. | 60 °C |
| Relative humidity: Operation, max. | 90 %; no condensation |
| proprietary | Yes |
|---|
| Message indicator | Yes |
|---|---|
| Alarm system (incl. buffer and acknowledgment) | Yes |
| Process value display (output) | Yes |
| Process value default (input) possible | Yes |
| Recipe management | Yes |
| Configuration software: STEP 7 Basic (TIA Portal) | No |
| Configuration software: STEP 7 Professional (TIA Portal) | No |
| Configuration software: WinCC flexible Compact | No |
| Configuration software: WinCC flexible Standard | No |
| Configuration software: WinCC flexible Advanced | No |
| Configuration software: WinCC Basic (TIA Portal) | No |
| Configuration software: WinCC Comfort (TIA Portal) | No |
| Configuration software: WinCC Advanced (TIA Portal) | No |
| Configuration software: WinCC Professional (TIA Portal) | No |
| Configuration software: WinCC Unified Basic Engineering (TIA Portal) | No |
| Configuration software: WinCC Unified Comfort Engineering (TIA Portal) | Yes; V18 or higher |
| Configuration software: WinCC Unified PC Engineering (TIA Portal) | Yes; V18 or higher |
| Online languages: Number of online/runtime languages | 32 |
|---|---|
| Project languages: Languages per project | 32 |
| Libraries | Yes |
|---|---|
| Applications/options: Writer | Yes |
| Applications/options: Calc | Yes |
| Applications/options: Web browser | Yes |
| Applications/options: PDF Viewer | Yes |
| Applications/options: Media Player | Yes |
| Applications/options: SIMATIC WinCC Sm@rtServer | Yes |
| Applications/options: SIMATIC WinCC Audit | Yes |
| Applications/options: Unified Collaboration | Yes |
| Number of Visual Basic Scripts | No |
| JavaScript | Yes |
| Task planner: time-controlled | Yes |
| Task planner: task-controlled | Yes |
| Help system: Number of characters per info text | 70 |
| Help system: Number of message texts per message | 10 |
| Message system: Number of alarm classes | 32 |
| Bit messages: Number of bit messages | 9 000 |
| Analog messages: Number of analog messages | 300 |
| Analog messages: S7 alarm number procedure | Yes |
| Analog messages: System messages HMI | Yes |
| Analog messages: System event, more (SIMATIC S7, SINUMERIK, SIMOTION, ... ) | Yes |
| Analog messages: Number of characters per message | 512 |
| Analog messages: Number of process values per message | 10 |
| Analog messages: Acknowledgment groups | Yes |
| Analog messages: Message indicator | No |
| Analog messages: Message buffer | Yes; Configured as alarm archive |
| Analog messages: Circulating buffer | Yes |
| Analog messages: retentive | Yes |
| Analog messages: maintenance-free | Yes |
| Parameter set management (recipes): Number of parameter set types | 750 |
| Parameter set management (recipes): Parameter sets per parameter set type | 2 000 |
| Parameter set management (recipes): Entries per parameter set | 1 000 |
| Parameter set management (recipes): Size of internal parameter set memory | 12 Mbyte |
| Parameter set management (recipes): Parameter set memory expandable | Yes |
| Variables: Number of variables per device | 8 000 |
| Variables: Number of variables per screen | 800 |
| Variables: Limit values | Yes |
| Variables: Structures | Yes |
| Variables: Arrays | Yes |
| Images: Number of configurable images | 1 200 |
| Images: Faceplate | Yes |
| Image objects: Number of objects per image | 1 200 |
| Image objects: Picture window | Yes |
| Image objects: Text fields | Yes |
| Image objects: I/O fields | Yes |
| Image objects: Graphic I/O fields (graphics list) | Yes |
| Image objects: Symbolic I/O fields (text list) | Yes |
| Image objects: Scalable Vector Graphics (SVG) | Yes |
| Image objects: Date/time fields | Yes |
| Image objects: Checkbox | Yes |
| Image objects: Option button | Yes |
| Image objects: Switches | Yes |
| Image objects: Buttons | Yes |
| Image objects: Graphic display | Yes |
| Image objects: Icons | Yes |
| Image objects: Custom web display | Yes |
| Image objects: Geometric objects | Yes |
| Complex image objects: Number of complex objects per screen | 80 |
| Complex image objects: Alarm view | Yes |
| Complex image objects: Trend view | Yes |
| Complex image objects: User view | Yes |
| Complex image objects: Status/control | Yes |
| Complex image objects: Parameter set display | Yes |
| Complex image objects: HTML browser | Yes |
| Complex image objects: Bar graphs | Yes |
| Complex image objects: Sliders | Yes |
| Complex image objects: Pointer instruments | Yes |
| Complex image objects: Analog/digital clock | Yes |
| Lists: Number of text lists per project | 750 |
| Lists: Number of entries per text list | 750 |
| Lists: Number of graphics lists per project | 750 |
| Lists: Number of entries per graphics list | 750 |
| Archiving: Number of archives per device | 50 |
| Archiving: Number of entries per archive | 500 000 |
| Archiving: Message archive | Yes |
| Archiving: Process value archive | Yes |
| Archiving methods: Sequential archive | Yes |
| Archiving methods: Short-term archive | Yes |
| Memory location: Memory card | Yes |
| Memory location: USB memory | Yes |
| Memory location: Ethernet | No |
| Security: Number of roles | 50 |
| Security: Number of function rights | 20; number of predefined function rights |
| Security: Number of users | 200 |
| Security: Password export/import | Yes |
| Security: Central user administration | Yes |
| Transfer (upload/download): USB | No |
| Transfer (upload/download): Ethernet | Yes |
| Transfer (upload/download): using external storage medium | Yes |
| Process coupling: S7-1200 | Yes |
| Process coupling: S7-1500 | Yes |
| Process coupling: S7-200 | Yes |
| Process coupling: S7-300/400 | Yes |
| Process coupling: Number of S7 connections | 16 |
| Process coupling: LOGO! | Yes; as of WinCC Unified V20 |
| Process coupling: WinAC | No |
| Process coupling: SINUMERIK | No |
| Process coupling: SIMOTION | No |
| Process coupling: Allen Bradley (EtherNet/IP) | Yes |
| Process coupling: Allen Bradley (DF1) | Yes |
| Process coupling: Mitsubishi (MC TCP/IP) | Yes |
| Process coupling: Mitsubishi (FX) | Yes |
| Process coupling: OMRON (FINS TCP) | Yes |
| Process coupling: OMRON (Host Link) | No |
| Process coupling: Modicon (Modbus TCP/IP) | Yes |
| Process coupling: Modicon (Modbus RTU) | Yes |
| Process coupling: OPC UA Client | Yes |
| Process coupling: OPC UA Server | Yes |
| Process coupling: Software Controller/Open Controller | Yes |
| Service tools/configuration aids: Backup/Restore manually | Yes |
| Service tools/configuration aids: Backup/Restore automatically | Yes |
| Service tools/configuration aids: Simulation | Yes |
| Service tools/configuration aids: Device switchover | Yes |
| Peripherals | Printer, barcode reader |
|---|---|
| Printer | Yes |
| SIMATIC HMI MM memory card: Multi Media Card | No |
| SIMATIC HMI SD memory card: Secure Digital memory card | Yes |
| SIMATIC HMI CF memory card Compact Flash Card | No |
| USB memory | Yes |
| SIMATIC IPC USB Flashdrive (USB stick) | Yes |
| SIMATIC HMI USB stick | Yes |
| Network camera | Yes |
| Enclosure material (front): Plastic | No |
|---|---|
| Enclosure material (front): Aluminum | Yes |
| Enclosure material (front): Stainless steel | No |
| Width of the housing front | 396 mm |
|---|---|
| Height of housing front | 255 mm; Without basic adapter |
| Weight (without packaging) | 6.1 kg |
|---|
| Net weight | 6.894 kg |
|---|---|
| Package dimensions | 468 × 335 × 144 mm |
| Country of origin | DE |
| Shipping weight | 7.894 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of MTP1500 Unified Comfort PRO is 0.7 A.
The rated operational voltage of MTP1500 Unified Comfort PRO is 24 V DC.
The tariff (HS) code on file for MTP1500 Unified Comfort PRO is 85371098.
The EAN (GTIN) of MTP1500 Unified Comfort PRO is 4047623413301.
MTP1500 Unified Comfort PRO ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Learn how a PLC works, including scan cycle, I/O sizing, IEC 61131-3 programming, and hardware selection for ABB, Schneider, and Siemens. Shop at Stoklink.
Compare ABB, Siemens, and Schneider Electric across motor control, energy efficiency, installation, support, and power distribution. Shop at Stoklink.
Contactors deliver safe, reliable motor control and automation switching for industrial systems, lighting, pumps, and heating loads. Shop at Stoklink.