PPU 300 Standard controller with CODESYS

Customisable controller with CODESYS PLC programming environment

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PPU 300 Display Front PPU 300 Rack Front PPU 300 Rack Front2 PPU 300 Rack Side PPU 300 Rack Side2

The PPU 300 Standard controller with CODESYS is a highly configurable generator, shore connection, or bus tie breaker controller. Instead of the CustomLogic PLC environment, it comes with the hardware and manufacturer independent CODESYS PLC environment that extends the functionality of the controller and gives you more control and communication options.

Using CODESYS, you can customise the PPU 300 controller to your requirements by developing unique, customised applications. You can use instruction lists, structured text, ladder diagrams, function block design, and sequential function charts, all of which are IEC 61131-3 compliant PLC programming languages.

Note that CustomLogic is not available in this controller variant.

Part of the versatile PPU 300 range

The PPU 300 Standard controller with CODESYS is part of the DEIF PPU 300 range of intelligent and versatile controllers with built-in load sharing and synchronisation features. It can be used for a wide range of marine and offshore applications with an extensive range of protection, supervision, and control functions, including market-leading fuel optimisation technology. The PPU 300 can be used in a power management solution where the power management logic is located elsewhere, and it handles busbar sections with ease. For general information about the PPU 300 range, see the PPU 300 main page.

Highly customisable architecture

All PPU 300 variants can be specified with 4 or 7 I/O module slots. The modules provide voltage and current measurement, I/O, engine control, governor and AVR functions, and communication. Three modules are mandatory, but you can use the remaining 1 or 4 slots to customise the controller by adding modules or leave them empty. In addition, you can add up to 9 expansion racks to a single PPU 300 to get up to 58 free module slots (up to 4 in the base rack and up to 6 in each expansion rack).

Unique ANSI 87G differential protection

With the optional ACM3.2 module, you can add ANSI 87G differential protection for generators. The module measures phase currents on the consumer and neutral sides of a generator in order to detect phase-to-phase faults or phase-to-earth faults in earthed generator systems. With this unique feature, you can design reliable and safe power systems without external differential protection devices.

For a full list of modules, see the Modules tab.

Recommended I/O modules

Slot 1

Slot 2

Slot 3

Slot 4

Slot 5

Slot 6

Slot 7



Blind module

Blind module

Blind module

Blind module


The table shows a 7-slot rack, but the controller is also available with a 4-slot rack. Modules PSM3.1, ACM3.1, and PCM3.1 are mandatory. If you add expansion module racks, each expansion rack must contain a PSM3.2 power supply module but does not need to contain other modules.

Other PPU 300 variants

Standard controller

Hybrid (battery) controller

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Product videos


Installing the display unit (DU 300)

Introduction to the display unit (DU 300)

Unboxing the display unit (DU 300)


Installing the Multi-line 300 controller rack