If you are using HCA Plus, you can operate HCA in client-server mode. In this mode, a Windows application called the "HCA Server" opens and executes your design. This application has a limited user interface - only menus for setting options. You can then run HCA in what we call "client-mode" where it connects to the server and all its actions are implemented by the server. For example the control of a light or starting a program is implemented by the client sending a message to the server. HCA in this mode has full read-write access to your design. The server can operate with multiple clients connected simultaneously.

In addition to connecting to the server using HCA in "client-mode" you can also connect with one of three different clients: A Windows application called the HCA Client, an Android application for phones and tablets, and an iOS application for the iPad and iPhone. The big difference is these clients only offer read-only access. They request the design from the server, load it, and offer a user interface for control of the design but no modifications are permitted.


Client App version Source Requirements
HCA Windows Client 14.1.9 See below HCA 14 and all versions of Windows post XP
Android Client 14.0.2 Google App Store (aka Play Store) HCA 14 and Android 2.3 or later
Android Client 13.0.7 Amazon App Store HCA 13 and Android 2.3 or later
iOS Client 2.0.3 Apple App Store (aka iTunes) HCA 14 and iOS 7 or later

Window Client

The Window client can be downloaded from this page. No registration code is needed so it can be installed on any Windows computer you want to use to connect to HCA

After installation, start the program and click on the HCA icon at the left end of the title bar. This opens the control panel. Press the settings button to configure the connection to the server. Once connected, the display is very similar to HCA when showing the Control User Interface. Complete documentation on the Windows client is available in the Clients chapter of the User Guide

Product Version Last Update Size
HCA Windows Client 14.1.9 March 1, 2018 10.6 mb

If you would like the source code for this Windows client it is available at no-cost for download as a Microsoft Visual Studio project. Contact Tech support to request the download