• ThingWorx Edge MicroServer (EMS) — The EMS is the communication conduit that provides a secure communication channel to a ThingWorx Platform instance. The EMS is a separate process, so it can support communications from one or more devices. In addition, the EMS provides a RESTful HTTP interface, allowing other applications to communicate with it. The EMS translates the REST Web Services into AlwaysOn protocol messages that it then sends to a ThingWorx Platform instance. For information about the REST interface, refer to REST Web Services and EMS.

• Lua Script Resource — An application for host devices that uses the Lua scripting language to integrate with them. The Lua Script Resource is an optional component. You do not need it to run the EMS. As an alternative, you can write your own application that uses HTTP and communicates directly with the EMS. For information about the Lua Script Resource, refer to Getting Started with the Lua Script Resource.