Manual MW-XF - Omni Instruments

MW User’s ManualExemysClassification according to the user’s software applicationThere are 3 variants of Middleware as a function of the software used to visualize and obtaininformation collected by the Middleware.1) WEB Middleware2) Transparent Middleware3) Modbus Middleware1) WEB Middleware:AS the name shows, the final application taking the information from the Middleware, is simply aweb page, previously designed and based on the user’s application. For this purpose the WEBMiddleware registers all the information from remote acquisition and control devices (GRD), intoan SQL-type database, which can be read from any Web application designed to that effect.Figure 1 - MW – WEB Example2) Transparent Middleware:Transparent Middleware is used in applications where a transparent communication tunnel isneeded between the device to be controlled and the original software of the device.For this purpose, a port redirector is installed in the computer having the device originalsoftware, and takes the information of the original software and sends it to Middleware, which inturn retransmits to the corresponding remote device.In this manner, neither the original software nor the remote device is aware of the existence ofthe communication link established by the Middleware, by means of GPRS cellular telephony.www.exemys.com Rev 2.1.0 - Junio 2009 8