EnerTree – DCEM

Data Centre Energy Management Software
for smarter PDU monitoring and power management

Two software versions, one goal

Manage your energy the way it fits your data centre

Schleifenbauer - Infographic PDU 5.0 EnerTree Platform vs EnerTree lite


SCALABLE SETUP – EnerTree Platform

Hardware: PDU 5.0 with Gateway module
Software: Runs in a dedicated VM environment; advanced DCEM software operating outside the PDU
Scalable: Designed for large-scale data centre environments of up to 10,000 PDUs
Zero Touch Provisioning: Automate PDU onboarding, rack assignment and configuration through the EnerTree REST API
Future-proof: Ready for AI, hyperscale and next-generation data centre requirements
Mass management & automation: Central configuration, large-scale firmware updates, role-based access control and automated deployment workflows
Power Quality Monitoring: Advanced measurements including Total Harmonic Distortion (THD), Crest Factor, voltage peaks and current peaks with timestamped event logging and PUE
Residual Current Monitoring: Optional RCS monitoring per phase for faster fault isolation and improved electrical safety
Reporting & analytics: Extensive historical data, trends, power quality analysis and export options (MS SQL, MySQL, MariaDB)
Integration: Operates as a standalone DCEM platform, or integrates seamlessly with existing DCIM, BMS and ERP systems
Database flexibility: Deploy with the built-in database or connect EnerTree VM to an existing external database environment
Diagnostics: Built-in network analysis tools for simplified deployment and troubleshooting
Security: Access secured with TLS 1.3, AES 256-bit encryption and role-based user management
Daisy Chain: One Gateway PDU connects up to 99 Daisy Chain PDUs, enabling up to 100 PDUs per IP address

CONVENTIONAL SETUP – EnerTree Lite

Hardware: PDU 5.0 with Controller module
Software: Integrated within the module; core DCEM functionalities directly inside the PDU
Management: Local management for up to 100 PDUs, ideal for conventional or small-scale setups
Access: Directly accessible via the Controller module; connects straight to existing DCIM software, no separate software required
Web interface: Available directly through the module
Power Quality Monitoring: Includes advanced measurements such as THD, Crest Factor and timestamped voltage and current peaks
Residual Current Monitoring: Optional support for advanced RCS measurements, including per-phase monitoring
Reporting: Historical data, trending, local monitoring and basic reporting
Integration: Direct integration via REST API, Redfish, SNMP and Modbus
Security: Access secured with TLS 1.3, AES 256-bit encryption and role-based user management
Daisy Chain: One Controller PDU connects up to 99 Daisy Chain PDUs, enabling up to 100 PDUs per IP address












Download here EnerTree Platform Software for PDU 5.0 with Gateway Module

Want to know more?

Read on below to learn about EnerTree

Why EnerTree is the right choice?

With EnerTree, you get a fully scalable, secure and user-friendly energy management platform, designed to meet the demands of modern data centres and industrial environments.

Key benefits:

Licence-free and cost-efficient: full DCEM functionality with no subscription fees

Scalable energy management: from small installations to enterprise-level environments

Seamless integration: compatible with DCIM, BMS and ERP systems

Enterprise-grade security: built for critical infrastructure

Real-time insight: measure, analyse and optimise right down to the outlet level

Compliance and reporting: supports standards such as EED and ISO 50001, with export and audit capabilities

Gain control of your power with EnerTree DCEM

EnerTree is Schleifenbauer’s own Data Centre Energy Management (DCEM) solution.

It is the result of years of collaboration with data centre operators, combining the precision of Schleifenbauer hardware with an intuitive and responsive interface. The software serves as the central platform for PDU energy management, bringing measurement, alerting and configuration together in one environment. This gives operators complete insight into their energy consumption, enables load optimisation, and helps ensure compliance with standards such as EED and ISO 50001.

New devices are automatically detected, settings can be managed centrally, and reports are easy to share across the organisation. With end-to-end encryption and support for modern communication protocols, EnerTree is secure, reliable and future-proof. The software is continuously developed based on real-world experience and evolves in step with the scale and complexity of your data centre.

Smart energy management, designed for the demands of modern data centres.

Request a quote for PDU 5.0 directly

Overview

EnerTree offers:

✔ Real-time monitoring of current, voltage and temperature

✔ Alerts for threshold breaches and failover events

✔ Rule-based automation and incident management

✔ PUE calculation and historical data analysis

✔ Hierarchical visualisation of the entire infrastructure

✔ Reporting, data export and user management

✔ Automated backups, firmware updates and audit logs

✔ Support for sensors and previous generations of Schleifenbauer PDUs

Functionality

FunctionalityEnerTree PlatformEnerTree Lite
PDU 5.0Gateway ModuleController Module
Maximum number of PDUs in the system10,000100
Maximum number of supported rings1001
Maximum number of PDUs in 1 ring (one IP address)100100
Refresh rate of measurements1 per second1 per 5 seconds
Device Management
Automatic detection of newly added PDUs
Mass configuration
Grouping devices & merging measurements
Supports Schleifenbauer Generation 2 and 3 PDUs
User Management
Custom roles & rights, group management, etc.
Control & Alerts
Group switching
Adjustable thresholds for all measurements (alerts)
Data
Dashboard viewAdvancedBasic
Report generationAdvancedBasic
Scheduling reports
Data export to files or databases
Security
Logging and auditingAdvancedBasic
Updates and backups (configuration, logs)

What problems does EnerTree solve?

Lack of visibility?
EnerTree centralises all measurement data from your PDUs – up to 10,000 devices – into a single platform with clear dashboards, reports and alerts.

Wasting time on manual configuration?
EnerTree automatically detects all PDUs in the network, generates dashboards without manual input, and adapts to your infrastructure.

No insight into peak loads or risks?
With real-time monitoring, smart thresholds and incident alerts, EnerTree gives you full control over energy usage, imbalance, overload and failovers.

Limited integration with existing systems?
EnerTree supports SNMP, Modbus/TCP, REST API, HTTPS, LDAP and SQL, and integrates seamlessly with your existing DCIM and IT platforms.

Security concerns?
EnerTree meets enterprise-grade standards with TLS 1.3, AES 256-bit encryption, audit logs, secure boot, role-based access control and Active Directory integration.

No time for lengthy implementations?
The software is ready to use out of the box, with zero-touch provisioning, automatic device detection and an intuitive interface – no training required.

Energy waste due to underused equipment?
Identify underutilised or idle assets, configure alerts and optimise usage through accurate measurements and historical analysis.

Struggling with compliance and reporting?
Schedule automated reports, export to MS SQL or MySQL, and support compliance with real-time and historical metrics down to outlet level.

High software costs with other vendors?
EnerTree is included free of charge with every PDU 5.0 – with no licence or subscription fees. You save immediately on recurring software expenses.

PDU 5.0 & EnerTree DCEM Software
PDU 5.0 & EnerTree DCEM Software

Security of PDU 5.0 and EnerTree

Cybersecurity is an important aspect of modern data centre infrastructure. Intelligent Power Distribution Units are connected to the network and can pCybersecurity is an important aspect of modern data centre infrastructure. Intelligent Power Distribution Units are connected to the network and can process measurement data, configuration information and, depending on the PDU type, switching commands. It is therefore important that access to these systems can be controlled and secured.

Schleifenbauer PDU 5.0 and EnerTree are designed for integration into the existing infrastructure and security architecture of the data centre. EnerTree supports, among other features, user and role management, HTTPS, TLS 1.3, LDAP/Active Directory, SNMPv3, SSH and various APIs and integration protocols.

This page provides an overview of the main security features of PDU 5.0, EnerTree Lite and EnerTree Platform, including information about network access, authentication, communication, software and firmware updates, data handling, NFC and technical support.

PDU 5.0 and EnerTree

PDU 5.0 uses a modular communication concept. Depending on the application, a PDU can be equipped with a Gateway module, Controller module or Daisychain module.

A PDU with a Controller module has embedded intelligence in the form of EnerTree Lite and can communicate directly with authorised systems within the customer’s network, for example via SNMP.

A PDU with a Gateway module provides the connection to EnerTree Platform. EnerTree Platform centralises the intelligence and can bring together multiple PDUs and external management systems within the customer’s network.

A PDU with a Daisychain module functions as an extension of the Databus of a Gateway or Controller PDU.

Up to 100 PDUs can be accessed via the Databus through a single Controller or Gateway module using one IP address.

This architecture makes it possible to concentrate network access for a larger group of PDUs rather than requiring a separate Ethernet connection and IP address for every individual PDU.

EnerTree Lite and EnerTree Platform

EnerTree is Schleifenbauer’s power monitoring and management software for PDU 5.0.

EnerTree Lite is embedded software running locally on the Controller module and supports up to 100 PDUs within a single Databus ring. It provides monitoring, configuration, user management, logging, auditing, backups, updates and integration capabilities.

EnerTree Platform is installed as a Virtual Machine within the customer’s own infrastructure. It is intended for larger installations and supports up to 10,000 PDUs and a maximum of 1,000 Databus rings.

Because EnerTree Platform is installed within the customer’s own server and network environment, the organisation determines where the system is hosted and which systems and users are permitted to access it.

Local operation and internet connectivity

EnerTree Lite and EnerTree Platform operate entirely within the customer’s own network environment.

Neither EnerTree Lite nor EnerTree Platform requires an internet connection for normal operation. The software does not establish an internet connection to Schleifenbauer or require a Schleifenbauer-hosted cloud service to operate.

EnerTree Platform is installed as a Virtual Machine within the customer’s infrastructure, while EnerTree Lite operates locally on the PDU Controller module.

Communication between EnerTree, connected PDUs and authorised clients takes place within the network infrastructure configured and controlled by the customer.

There is no external internet-based access to EnerTree Lite or EnerTree Platform. Access to the software is provided through the customer’s own network environment.

This means that customers remain in control of network access, routing, segmentation, firewall policies and remote access to their EnerTree environment.

Network isolation, segmentation and VPN access

As EnerTree operates within the customer’s own network environment and does not depend on an external cloud service, it can be incorporated into the customer’s network security architecture.

Customers can use network segmentation, VLANs, firewall rules and other network security controls to restrict communication with EnerTree and the PDUs.

Where remote access by the customer’s own users is required, this can be provided through the customer’s own secure network access solution, such as a VPN. The VPN and its configuration remain under the control of the customer.

EnerTree Platform and the PDUs may also be placed in different IP ranges, provided that the required communication routes between the systems are permitted by the customer’s network infrastructure.

Operational data and cloud services

Operational PDU data is processed within the customer’s own environment.

Depending on the configuration and connected equipment, this may include:

  • electrical measurement data;
  • environmental measurement data;
  • PDU and device status information;
  • configuration information;
  • alarms and notifications;
  • outlet, branch and input information;
  • device identification information; and
  • logging and audit information.

EnerTree Lite and EnerTree Platform do not require a Schleifenbauer cloud service for operation and do not transmit operational PDU data to a Schleifenbauer cloud environment.

For EnerTree Platform, operational data is processed within the Virtual Machine hosted in the customer’s infrastructure. EnerTree Lite operates locally on the PDU Controller module.

Any personal information provided separately to Schleifenbauer, for example when registering to download EnerTree or when contacting Technical Support, is separate from the operational data processed within EnerTree. Such information is handled in accordance with the applicable Schleifenbauer Privacy Policy and End User Licence Agreement.

Authentication and user management

EnerTree supports individual user accounts and role-based access control.

Users can be added and removed and assigned to different roles. Access rights range from full administrative access to read-only access.

Depending on the assigned role, a user may be permitted to view data, modify configurations or switch outlets.

EnerTree includes roles for:

  • full administrative read/write access;
  • read-only access;
  • read-only access combined with PDU switching;
  • read/write access for device setup; and
  • specific permissions for switching outlets on.

This allows access to be tailored to the responsibilities of individual users and administrators.

For example, a user who only needs to monitor measurement data can be provided with read-only access without permission to change parameters or switch outlets.

EnerTree also supports strong password configuration and customisable roles, permissions and group management.

LDAP and Active Directory

EnerTree can be integrated with LDAP and Microsoft Active Directory for centralised authentication and user management.

LDAPS can be used for encrypted LDAP or Active Directory connections. For encrypted LDAP with Active Directory, port 3269 is recommended.

Certificates, including self-signed certificates where these are used within the customer’s infrastructure, can be imported into the TLS Certificate settings in EnerTree.

This allows EnerTree authentication to be incorporated into the organisation’s existing identity and access management environment.

Encrypted communication and TLS

EnerTree supports SSL/TLS 1.3 and HTTPS.

Multiple TLS certificates can be added to EnerTree. Certificates can be used for purposes including LDAP connections and device access.

Supported certificate and key formats include:

  • PEM;
  • PKCS#12 (.pfx and .p12);
  • DER; and
  • .crt and .cer certificate files.

If a private key is encrypted, a passphrase can be specified.

This enables EnerTree to be integrated with the organisation’s own certificate management and PKI infrastructure.

Network communication

The network architecture in which EnerTree and the PDUs are deployed is determined by the customer’s infrastructure.

EnerTree Platform and the PDUs may, for example, be located in different IP ranges, provided that the required network connections between the systems are permitted.

Access to the EnerTree web interface uses HTTP via port 80 or HTTPS via port 443.

EnerTree also uses WebSockets or Secure WebSockets. The customer’s firewall configuration must therefore permit the required HTTP/HTTPS protocol upgrade and long-lived connections where these are required.

The customer determines which systems and network segments are permitted to communicate with EnerTree and the PDUs.

Supported protocols and interfaces

EnerTree supports a range of protocols for monitoring, management and integration with other systems.

These include:

HTTP / HTTPS
For access to the EnerTree web interface and web-based communication.

REST API
For integration with external applications and management systems.

SNMP v2c and SNMPv3
For monitoring and management from Network Management Systems and DCIM solutions.

Modbus
For integration with systems using Modbus.

Redfish
For standardised integration with data centre and hardware management systems.

SSH
For command-line access to the system.

SMTP
For email alerts and notifications where configured within the customer’s network environment.

NTP
For time synchronisation with an NTP service available within the customer’s network environment.

LDAP / Active Directory
For centralised user authentication and user management.

The required protocols and network access can therefore be incorporated into the customer’s own network and security architecture.

SNMP

EnerTree supports both SNMPv2c and SNMPv3.

SNMP can be used to read and, where permitted, write registers in EnerTree and Schleifenbauer PDUs. A MIB file is available for this purpose and can be downloaded from the SNMP agent menu in EnerTree.

For security-sensitive environments, we recommend using SNMPv3 where possible because it provides more extensive security capabilities than SNMPv2c.

SSH and command-line access

EnerTree includes a CLI service for command-line access via SSH.

The TCP port of the SSH server can be configured. The default port is 22, or 2022 for certain non-root installations.

It is also possible to configure the IP address or interface on which the SSH server listens.

Organisations can therefore incorporate SSH access into their own network segmentation, firewall rules and administrative access policies.

Logging and auditing

EnerTree provides logging and auditing functionality.

EnerTree Platform provides extensive logging and auditing capabilities, while EnerTree Lite provides basic logging and auditing functionality.

EnerTree also includes an audit log in which events within the system can be recorded.

This supports administrators in reviewing events, configuration changes and operational activities within the EnerTree environment.

Backups

EnerTree supports backups of configuration and log files.

This allows relevant system configuration and logging information to be retained as part of the customer’s own management, backup and recovery procedures.

As EnerTree Platform is installed as a Virtual Machine within the customer’s infrastructure, the customer can also apply its own infrastructure and VM backup procedures.

Backups are therefore managed within the customer’s own environment and can be incorporated into existing backup and disaster recovery policies.

Software and firmware updates

EnerTree supports software updates and PDU firmware updates.

EnerTree Platform can be updated using an update file provided by Schleifenbauer. The update file is selected and installed from within the EnerTree settings. After installation, EnerTree restarts to complete the update.

Updates are not automatically installed from the internet. The customer remains in control of when an EnerTree update is downloaded, transferred to the EnerTree environment and installed.

EnerTree Platform also provides functionality for updating PDU firmware.

This allows customers to incorporate EnerTree and PDU updates into their own testing, approval and change management procedures.

The modular design of PDU 5.0 also allows Communication modules to be replaced or upgraded. The modules are ESD-safe and hot-swappable, allowing maintenance or replacement of a Communication module without having to switch off the PDU itself.

Technical support and access

Schleifenbauer provides technical support for issues involving PDU hardware, EnerTree software and firmware.

EnerTree is not externally accessible to Schleifenbauer through the internet. Access to EnerTree is controlled by the customer’s own network infrastructure.

If access is required for technical support, this must therefore be provided within an access method permitted and controlled by the customer.

Normal operation of EnerTree does not require Schleifenbauer to have access to the customer’s EnerTree environment.

NFC and the PDU Display App

PDU 5.0 Communication modules are equipped with NFC. This allows measurement data and settings to be viewed locally using the Schleifenbauer PDU Display App.

During an NFC scan, a snapshot of PDU measurement data and settings is transferred locally from the PDU to the mobile device via NFC.

There is no continuous live connection between the smartphone and the PDU after the scan. A new NFC scan is required to retrieve current information from the PDU.

The PDU Display App can be used to view information including:

  • inputs;
  • branches;
  • outlets;
  • totals;
  • network configuration; and
  • device information.

The displayed measurement data represents data from around the time the scan was performed and is therefore not a continuous live data stream.

The NFC functionality provides local access to PDU information without requiring a permanent physical display on the PDU.

Network redundancy and Databus

Gateway and Controller modules feature Gigabit Ethernet and provide the option of adding a second network interface for redundancy.

PDU 5.0 also features two redundant RJ45 Databus connections.

Up to 100 PDUs can be accessed via the Databus using a single IP address.

The Daisychain architecture therefore makes it possible to connect multiple PDUs without connecting every individual PDU separately to the Ethernet network.

Monitoring, alerts and thresholds

EnerTree provides operational monitoring of connected PDUs and associated measurements.

Warning and critical thresholds can be configured for measurements. Thresholds can be applied at different levels, including PDUs, branches, outlets and inputs.

EnerTree can also generate notifications and email alerts where the required email service is configured within the customer’s environment.

This enables abnormal electrical or environmental conditions to be identified at an early stage.

Security hardening

The security of an intelligent PDU system depends both on the security functionality of the product and on how it is configured within the customer’s infrastructure.

We recommend incorporating PDU 5.0 and EnerTree into the organisation’s existing IT and OT security policies.

Where supported and appropriate for the customer’s application, unnecessary services and interfaces should be disabled or restricted through product configuration and/or the customer’s network security controls.

Where possible, secure protocol variants should be used. For example:

  • HTTPS instead of HTTP;
  • LDAPS instead of LDAP; and
  • SNMPv3 instead of SNMPv2c.

Network access should be restricted to authorised systems and users using appropriate segmentation, VLANs, firewall rules and access controls.

EnerTree’s role-based access control can also be used to apply the principle of least privilege. Where a user only requires monitoring access, a read-only role can be assigned so that the user cannot change parameters or switch outlets.

Reporting vulnerabilities and security incidents

Schleifenbauer takes the security of its products seriously and works with security researchers, customers and partners to address vulnerabilities responsibly.

Have you discovered a vulnerability in a Schleifenbauer PDU, EnerTree Lite or the EnerTree Platform, or do you suspect that one of our products is being actively exploited? Please report it to:

security@schleifenbauer.eu

Please include as much of the following information as possible so that we can assess your report quickly:

  • The affected product, model and, if known, firmware or software version
  • A description of the vulnerability or incident
  • Steps to reproduce the issue, where applicable
  • Any evidence of active exploitation, such as log files or network traffic
  • Your contact details for any follow-up questions

Customer security responsibilities

A secure installation is a shared responsibility.

Schleifenbauer provides the product functionality required to integrate PDU 5.0 and EnerTree into a secured environment. The customer remains responsible for the configuration and security of its own network infrastructure and for determining which users and systems are permitted to access the products.

We recommend, as a minimum:

  1. Change default credentials during commissioning.
  2. Use strong, unique passwords.
  3. Grant users only the permissions required to perform their duties.
  4. Use HTTPS and appropriate TLS certificates.
  5. Use secure protocol variants such as SNMPv3 and LDAPS wherever possible.
  6. Restrict network access using segmentation, VLANs and firewall rules appropriate to the organisation’s security policies.
  7. Make SSH and other management interfaces available only to systems and administrators that require them.
  8. Keep EnerTree software and PDU firmware up to date.
  9. Regularly back up relevant configuration and logging information.
  10. Review audit logs and system notifications.
  11. Control any remote access through the customer’s own network security infrastructure.
  12. Include EnerTree and the PDUs in existing vulnerability, change and access management processes.

Default credentials may be used during initial commissioning. These credentials should be changed as part of the commissioning process before the system is placed into normal operation.

End User Licence Agreement and privacy

Use of EnerTree is subject to the Schleifenbauer End User Licence Agreement (EULA).

The EnerTree Lite and EnerTree Platform manuals refer to the current End User Licence Agreement available through Schleifenbauer.

The EULA contains the applicable terms relating to the use of EnerTree software.

Registration may be required to obtain EnerTree software or related licence information from Schleifenbauer. Personal information provided during registration or when contacting Schleifenbauer is separate from the operational data processed within the customer’s EnerTree environment and is handled in accordance with the applicable Schleifenbauer Privacy Policy.

Security information for customer assessments

We recognise that customers operating data centres and other critical infrastructure may need to carry out internal cybersecurity, compliance or supplier security assessments before connecting equipment to their infrastructure.

The information on this page is intended to support such assessments by explaining the security architecture, network connectivity and relevant security functionality of PDU 5.0 and EnerTree.

Customer-specific security requirements should always be assessed against the PDU model, Communication module, firmware version, EnerTree version and network configuration being used.

For requirements that are not covered by this page or the relevant product manuals, please contact Schleifenbauer Technical Support before deployment.

Product security questions

Does every PDU require its own IP address?

No. Within PDU 5.0, up to 100 PDUs can be connected via a single Databus to a PDU equipped with a Controller or Gateway module. This group can be accessed using a single IP address.

Does EnerTree require an internet connection?

No. EnerTree Lite and EnerTree Platform operate within the customer’s own network environment and do not require an internet connection for normal operation.

Does EnerTree connect to the Schleifenbauer cloud?

No. EnerTree Lite and EnerTree Platform do not require a Schleifenbauer cloud service for operation. Operational PDU data is processed within the customer’s own environment.

Can EnerTree be accessed by Schleifenbauer over the internet?

No. EnerTree is not externally accessible to Schleifenbauer through the internet. Access to EnerTree is controlled through the customer’s own network infrastructure.

Can EnerTree be placed behind a VPN?

Yes. As access to EnerTree is controlled through the customer’s network infrastructure, customers can use their own VPN solution for remote access to the EnerTree environment.

Can EnerTree be used within a segregated network?

Yes. EnerTree is installed and operated within the customer’s network environment. Network segmentation, VLANs, routing and firewall policies are controlled by the customer.

Does EnerTree support HTTPS?

Yes. EnerTree supports HTTP and HTTPS. TCP port 443 is used for HTTPS and TLS 1.3 is supported.

Can we use our own TLS certificates?

Yes. EnerTree supports multiple TLS certificates and private keys. Supported formats include PEM, PKCS#12 and DER.

Does EnerTree support Active Directory?

Yes. EnerTree supports LDAP and Microsoft Active Directory. LDAPS can be used for encrypted LDAP connections.

Does EnerTree provide different user permissions?

Yes. EnerTree supports individual users and role-based access control, ranging from full administrative access to read-only access and roles with specific switching or configuration permissions.

Can EnerTree be configured for read-only access?

Yes. EnerTree provides a read-only user role. Users assigned this role can view device and port information but cannot change parameters or switch outlets.

Does EnerTree support SNMPv3?

Yes. Both SNMPv2c and SNMPv3 are supported. For security-sensitive environments, SNMPv3 is recommended where possible.

Does EnerTree support logging and auditing?

Yes. EnerTree provides logging and auditing functionality. EnerTree Platform provides more extensive logging and auditing capabilities than EnerTree Lite.

Can configurations be backed up?

Yes. EnerTree provides backup options for configuration and log files. EnerTree Platform customers can also incorporate the Virtual Machine into their own infrastructure backup procedures.

Are EnerTree updates installed automatically?

No. EnerTree updates are not automatically installed from the internet. Updates are installed using an update file provided by Schleifenbauer, allowing the customer to control when an update is introduced into the environment.

Can PDU firmware be updated?

Yes. EnerTree Platform provides functionality for PDU firmware updates.

Does Schleifenbauer have permanent remote access to EnerTree?

No. EnerTree is not externally accessible to Schleifenbauer through the internet. Any access required for technical support must be provided through an access method permitted and controlled by the customer.

Does NFC continuously transmit data from the PDU?

No. An NFC scan transfers a snapshot of PDU measurement data and settings to the PDU Display App. There is no continuous live connection to the PDU after the scan. A new scan is required to retrieve current PDU information.

Is operational PDU data stored in the Schleifenbauer cloud?

No. EnerTree does not require a Schleifenbauer cloud service for operation. EnerTree Platform is hosted within the customer’s infrastructure and EnerTree Lite runs locally on the PDU Controller module.

Where can I report a technical or security issue?

Technical or security-related issues involving Schleifenbauer products, EnerTree software or PDU firmware can be reported to Schleifenbauer Technical Support at support@schleifenbauer.eu.

More information

Further technical information about configuration, network interfaces, user management, TLS certificates, SNMP, APIs, updates and other functionality is available in the PDU 5.0, EnerTree Lite and EnerTree Platform manuals.

For software terms and conditions, please refer to the current EnerTree End User Licence Agreement.

For technical or security-related questions that are not covered by the documentation, please contact Schleifenbauer Technical Support at support@schleifenbauer.eu.

Security PDU 5.0 EnerTree

System Requirements

EnerTree is designed for compatibility with modern data centre environments and can be deployed flexibly across a wide range of IT infrastructures.

Supported environments:

• Virtual systems: VMware ESX(i) version 4.1 or higher

• Container platforms: Docker 18.03 or higher

Minimum system requirements:

• Memory: 4 GB RAM

• Storage: 32 GB

EnerTree is suitable for both standalone deployments and integration into existing virtualisation or container platforms.

Schleifenbauer - Rack PDU

EnerTree Platform in combination with PDU with Gateway Module

The EnerTree Platform requires a combination of a Schleifenbauer PDU 5.0 and a Gateway Module. The PDU acts as the measurement unit, sending real-time data on current, voltage, power and energy consumption directly to the Gateway, which connects to the EnerTree Platform software.

Schleifenbauer has redefined the energy monitoring concept: intelligence is moved from the PDU into the platform, where hardware and software operate in perfect synergy. This enables deep analytics, central configuration and scalable energy management – with less hardware per PDU and full control for the data centre.

Gateway Module PDU 5.0

Gateway Module

The Gateway Module forms the core of the EnerTree Platform, handling all communication, data processing and central management. This module:

• Supports up to 10,000 PDUs (maximum 100 per IP address via daisy chaining)

• Delivers a measurement refresh rate of 1x per second

• Centrally manages configurations, group switching and thresholds

• Automatically detects new PDUs in the network

• Enables seamless connection to the EnerTree Platform software

• Integrates easily with third-party DCIM solutions via SNMP, Modbus/TCP, REST API, HTTPS and more

Physical interfaces on the Gateway Module:

• 1 Gbps RJ45 Ethernet port (for direct network integration)

• 2 RJ45 data bus ports (for ring communication with downstream PDUs)

• 2 USB-A ports (for configuration, sensor expansion or second Ethernet via USB adapter)

Zero-touch provisioning on all interfaces (automatic detection & configuration)

In summary, the EnerTree Platform requires:

• At least one Schleifenbauer PDU 5.0

• At least one Gateway Module

• A host system (server or VM) for the EnerTree DCEM software installation

Daisy Chaining and Network Topology

When using daisy chaining, only one PDU per ring requires a Gateway Module (EnerTree Platform). The remaining PDUs – up to 99 units – are equipped with Daisy Chain Modules, enabling fast data transfer without individual IP addresses. This reduces network load and simplifies configuration.

The absence of an Ethernet port adds an extra layer of security, eliminating exposure to unauthorised access. The module is also cost-efficient, with minimal onboard hardware – ideal for scalable deployments.

Need more functionality later? The hot-swappable design allows you to upgrade to a Gateway or Controller Module at any time, without downtime.

EnerTree Lite in combinatie with PDU with Controller Module

EnerTree Lite is the embedded version of Schleifenbauer’s DCEM software, integrated directly into the Controller Module. This solution is designed for data centres that prefer to manage their PDUs locally, without relying on external server infrastructure. In this setup, each PDU is equipped with its own Controller Module and built-in web interface – a structure that aligns with common market standards. As such, EnerTree Lite is ideal for smaller or conventional environments, where centralised data processing is not required and direct access per PDU is sufficient.

Controller Module PDU 5.0

Controller Module

The Controller Module houses EnerTree Lite as embedded software, accessible directly via the PDU’s web interface – with no need for a separate host, server or installation.

What does EnerTree Lite offer?

• Local access to PDU data via an intuitive web interface

• Supports up to 100 PDUs per system (via daisy chaining)

• Measurement refresh rate: once every 5 seconds

• Visualisation of data per PDU, including input, branch and outlet levels

• Customisable thresholds and alert notifications

• Basic reporting functionality

• Data export to external systems (MS SQL, MySQL, MariaDB)

• Seamless integration with third-party DCIM platforms via SNMP, Modbus/TCP, REST API, HTTPS, and more

Controller Module Interfaces:

1 Gbps RJ45 Ethernet port for network access and web configuration

2 RJ45 data bus ports for communication with daisy-chained PDUs

2 USB-A ports for sensor expansion or a second Ethernet port via USB adapter

Zero-touch provisioning (automatic detection and configuration)

In summary, EnerTree Lite requires:

• At least one Schleifenbauer PDU 5.0

• One Controller Module with built-in EnerTree Lite software (no separate server or desktop required)

Daisy Chaining and Network Topology

When using daisy chaining, only one PDU per ring requires a Controller Module (EnerTree Lite). The remaining PDUs – up to 99 units – are equipped with Daisy Chain Modules, enabling fast data transfer without individual IP addresses. This reduces network load and simplifies configuration.

The absence of an Ethernet port adds an extra layer of security, eliminating exposure to unauthorised access. The module is also cost-efficient, with minimal onboard hardware – ideal for scalable deployments.

Need more functionality later? The hot-swappable design allows you to upgrade to a Gateway or Controller Module at any time, without downtime.

User Manual

Download the user manuals for the EnerTree Platform (VM software for PDU with Gateway Module) and EnerTree Lite (embedded software for PDU with Controller Module), the Data Centre Energy Management (DCEM) software from Schleifenbauer.

These documents provide clear, step-by-step guidance on the installation, configuration and use of the software.

EnerTree Platform – DCEM VM Software for PDU with Gateway Module – User Manual v1.17 (English)


EnerTree Lite – DCEM Embedded Software for PDU with Controller Module – User Manual v1.17 (English)

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