This software can be used as replacement for HMI operator panel. Some functions of Scada-systems such as reading and writing different data types are provided. Modbus TCP/IP protocol is supported. In order to use Modbus RTU/ASCII additional Modbus converter (for example tgw-715) is necessary.
If you need only viewer: https://play.google.com/store/apps/details?id=net.sagram.hmi_modbus_viewer.
Manual: https://drive.google.com/drive/folders/0B_ogMSvuFCPAcUgyZURYaDF1ZTg?usp=sharing