There are two types of I/O modules available. A large model with 16 I/O:s, as well as a small model with either 7 or 10 I/O. Integration of the I/O modules into an EXO system is intended for advanced system integrators only. Up to 32 I/O modules can be connected to one controller but the limit is set by the system integrator and the application.There are currently no templates available in EXOdesigner for the different I/O modules. When the modules are used in EXO systems, it is therefore necessary to use EXOL code in the master controller in order to read and write to the variables in these models. The variables available for each I/O module can be found in the appendix of this manual. In order to follow the same address conventions as normally in EXOdesigner, the PLA address of the I/O slave module should be the same as for the master controller.