Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to fa. Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable code. The different types of expansion I/O modules are listed in the following table.The Connected Components Workbench programming software makes it easy to configure the modules as most module features can be enabled or disabled through the device configuration portion of the software. You can also use the software to check any expansion I/O module in the system to retrieve: hardware revision information vendor ID module informat. The discrete expansion I/O modules have yellow status indicators for each input/ output point which indicates the On/Off state of the point.(1) Refers to isolation from field side wiring to controller, not channel-to-channel isolation. Analog expansion I/O modules are interface modules that convert analog signals to digital values for inputs and convert digital values to analog signals for outputs. Controllers can then use these signals for control purposes.