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The Siemens 6AV3678-3XC30-XC30 SIMATIC HMI Service Pack is a maintenance spare-parts package associated with Siemens SIMATIC HMI pushbutton panels. The service pack reference 6AV3678-3XC30 is listed for PP7, PP17 I and PP17 II panel families, with components intended to support servicing and restoration of the operator panel’s installation and electrical connections.
For maintenance teams working with established machine-control installations, a service pack can be useful when a panel needs to be removed and refitted or when its mounting and terminal components require replacement. Having the appropriate service parts available helps avoid sourcing individual components separately during a planned maintenance shutdown.
The service package is associated with mounting seals, mounting clamps and electrical terminal blocks. These parts serve different purposes: the seal supports the panel’s mounting interface, the clamps secure the panel in its installation opening, and the terminal blocks provide connection points for the applicable electrical circuits.
The supplied product title includes the extended reference 6AV3678-3XC30-XC30. The documented service-pack reference is 6AV3678-3XC30, so the exact ordering reference and package contents should be checked against the equipment being serviced before the parts are used.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model / Order Number | 6AV3678-3XC30-XC30 |
| Associated Service-Pack Reference | 6AV3678-3XC30 |
| Product Family | SIMATIC HMI |
| Product Type | HMI Service Pack |
| Product Category | Operator Panel Service Parts |
| Intended Equipment | SIMATIC HMI Pushbutton Panels |
| Associated Panel Families | PP7, PP17 I and PP17 II |
| Main Components | Mounting seal, mounting clamps and terminal blocks |
| Service Function | Replacement of specified panel mounting and connection components |
| Dimensions | 189 × 126 × 34 mm |
| Weight | 0.5 kg |
Unlike an HMI panel or controller, the service pack does not execute control logic, display process data or communicate with a PLC. It contains replacement parts used when maintaining the physical installation and electrical connections of a compatible operator panel.
The mounting seal sits at the panel-to-enclosure interface, while the mounting clamps hold the panel in place. Terminal blocks provide the connection points needed for the applicable electrical circuits. Each component must be installed in its designated position to maintain the intended mechanical fit and electrical connection.
During panel replacement or refurbishment, worn seals, damaged clamps or compromised terminal connections may need attention. Using the correct service parts helps restore the original mounting arrangement without substituting components based only on appearance.
The service pack itself does not establish panel compatibility with a PLC or replace the HMI’s operating software. Those requirements depend on the installed panel, its electrical configuration and the automation system in which it operates.
The service pack supports the physical installation and electrical connection of a compatible SIMATIC HMI pushbutton panel. The panel remains the operator interface; the service parts help maintain its mounting and connection arrangements.
Operator Panel → Mounting Seal and Clamps → Electrical Terminal Connections → PLC and Machine-Control System
| System Component | Function | Relationship to the Service Pack |
|---|---|---|
| 6AV3678-3XC30 HMI Service Pack | Supplies specified replacement parts | Supports servicing of compatible operator panels |
| SIMATIC HMI Pushbutton Panel | Provides local operator controls | Uses the applicable mounting and connection components |
| Mounting Seal | Seals the panel-to-enclosure interface | Replaced when damaged or when required by servicing |
| Mounting Clamps | Secure the panel in the mounting opening | Hold the operator panel in position |
| Power Terminal Block | Provides the applicable power connection | Supports reconnection during panel servicing |
| Digital I/O Terminal Blocks | Provide electrical connection points for applicable signals | Support wiring restoration where included in the package |
| PLC | Executes machine-control logic | Exchanges signals with the operator station according to the installed configuration |
| Control Cabinet or Enclosure | Houses the panel and associated equipment | Provides the mechanical installation opening |
| Field Wiring | Carries power and control signals | Must be reconnected to the correct terminals |
| HMI Configuration | Defines the panel’s configured operating behavior | Remains separate from the mechanical service parts |
| Application | Typical Equipment | Role of the Service Pack |
|---|---|---|
| Machine-Building Facilities | SIMATIC HMI pushbutton panels | Supports planned panel maintenance |
| Manufacturing Lines | Operator stations on production machinery | Helps restore mounting and connection components during servicing |
| Packaging Equipment | Local operator interfaces | Supports maintenance of compatible panel installations |
| Material Handling Systems | Machine-mounted pushbutton panels | Provides specified replacement mounting and terminal parts |
| Industrial Control Cabinets | HMI panels installed in enclosure doors | Supports panel removal and refitting |
| Equipment Refurbishment | Existing SIMATIC HMI installations | Helps replace worn or damaged service components |
| Plant Maintenance Workshops | Spare-parts inventory for established machinery | Supports preparation for scheduled HMI maintenance |
| Production-System Upgrades | Existing operator stations undergoing service work | Helps maintain the panel’s specified mounting arrangement |
| Component | Function | Relationship to the Service Pack |
|---|---|---|
| SIMATIC HMI PP7 Panel | Provides local operator interaction | Associated panel family for the service package |
| SIMATIC HMI PP17 I Panel | Provides operator controls and status indication | Associated panel family for the service package |
| SIMATIC HMI PP17 II Panel | Provides local machine operation | Associated panel family for the service package |
| Mounting Seal | Seals the panel-to-enclosure interface | One of the service components |
| Mounting Clamps | Secure the operator panel | Support panel installation and removal |
| Power Terminal Block | Provides an electrical connection point | Supports power wiring where included |
| Digital I/O Terminal Blocks | Connect applicable digital signals | Support restoration of panel wiring |
| Control Cabinet | Houses the operator panel and control equipment | Provides the mounting location |
| PLC | Executes machine logic | Communicates with the operator interface according to the system configuration |
| HMI Wiring | Carries electrical power and signals | Must be correctly reconnected after servicing |
| Model / Product | Product Type | Relationship | Selection Consideration |
|---|---|---|---|
| Siemens 6AV3678-3XC30 | SIMATIC HMI Service Pack | Base service-pack reference associated with the supplied designation | Confirm the exact ordering reference and package contents |
| Siemens SIMATIC HMI PP7 | HMI Pushbutton Panel | Associated panel family | Match the service parts to the installed panel |
| Siemens SIMATIC HMI PP17 I | HMI Pushbutton Panel | Associated panel family | Verify the panel version and terminal arrangement |
| Siemens SIMATIC HMI PP17 II | HMI Pushbutton Panel | Associated panel family | Confirm the mounting and connection requirements |
| Siemens 6AV3678-1CC10 | SIMATIC HMI Service Pack | Separate service package associated with OP7, OP17 and TD17 equipment | Do not substitute without confirming equipment compatibility |
The service-pack reference is associated with PP7, PP17 I and PP17 II pushbutton panels. Confirm the installed panel variant and exact service-pack designation before selecting replacement parts.
The documented package includes mounting seals, mounting clamps and terminal blocks for the applicable power and digital I/O connections. Confirm the required package contents before maintenance.
No. It is a service-parts package rather than an operating HMI device or PLC module. Its role is to support maintenance of the panel’s mounting and electrical connection components.
Inspect the mounting seal, clamps, terminal blocks and enclosure opening. Confirm the wiring assignments and ensure that all components are fitted correctly before restoring the electrical supply.