Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.
Engine IO Explorer Engine IO Explorer uses the latest EngineIO.dll May 15, 2018
lib Fixes allocations when reading May 11, 2018
samples Fix on Sorting Weight controller. May 19, 2016
.gitignore Added git ignore Sep 9, 2016
README.md Improvements on Readme Jan 4, 2017
RESERVED ADDRESSES.md Added list of reserved addresses Apr 28, 2016



FACTORY I/O SDK (Software Development Kit) provides tools so that developers can create custom applications that access the simulation I/O points. These applications can be used as interfaces between FACTORY I/O and virtually any type of technologies, such as PLC, microcontrollers, databases, spreadsheets and so on.

All of the simulation I/O points can be accessed through the SDK independently of the selected driver. Select None from the I/O drivers drop-down list when accessing the I/O points only through the SDK. Please note that Ultimate Edition is required in order to use the SDK.

Engine I/O

Engine I/O is a .NET 2.0 assembly for inter-process communication (IPC) between FACTORY I/O and custom applications. It gives access to the simulation I/O points through a memory mapped file. The memory is divided in three groups: Inputs, Outputs and Memories. Standing from a controller point of view, Inputs are used to read sensors values, Outputs to write actuators and Memories to exchange generic data. An I/O point is made of a memory address, name and value representing a specific data type.

Some considerations to take into account when using Engine I/O:

  • The MemoryMap class is a singleton, meaning that only one instance can exist. This instance represents a cached copy of the memory mapped file.
  • The MemoryMap.Instance.Update() method is responsible for synchronizing cached data with the actual memory. This method must be called every time there is the need to read/write the latest I/O points or receive event notifications.

Engine I/O Explorer Tool

The Engine I/O Explorer is a tool developed to browse I/O points addresses, names and values. It can be used to observe or force I/O points values, whether they are Inputs, Outputs or Memories.