protocol enables the connection of up to two RS232 devices or up to four RS422
devices to a Simatic RF100C module. An appropriate supply voltage of either 24
or 5 volts is provided for the connected devices. In particular, the access control reader Simatic
RF1040R and RF1070R, same as Simatic MV320 optical handheld reader can now be
operated using the communication module thanks to Freeport functionality.
Besides Profinet (open Industrial Ethernet standard) using Ident-Profile and
FB45 functional block and OPC UA, XML (Extensible Markup Language) can now also
be used for programming.