7 Setup with PACTware7.1 Connecting the PCFor a brief connection to the PC, for example for parameteradjustment, you should use the USB interface. The necessaryconnection socket is on the lower side of all instrument versions. Keepin mind that correct functioning of the USB interface is only guaranteedin the (limited) temperature range of 0 … 60 °C.Note:The connection via USB requires a driver. First of all, install the driverbefore connecting VEGAMET 391 to the PC.The required USB driver is included on the CD "DTM Collection". Youshould always use the latest version to ensure support of all instrumentfunctions. The system requirements for operation correspond to thoseof the "DTM Collection" or of PACTware.When installing the driver package "DTM for Communication", thesuitable instrument driver is installed automatically. When connectingVEGAMET 391, the driver installation is finished automatically and isready for operation without a restart.132Fig. 7: Connection of the PC via USB1 USB interface of the PC2 Mini-USB connection cable (in the scope of delivery)3 USB interface of VEGAMET 391With the Ethernet interface, the instrument can be connected directlyto an existing PC network. Any standard patch cable can be used. Across-over cable must be used when connecting the instrumentdirectly to the PC. To reduce EMC interferences, the supplied splitferrite should be connected to the Ethernet cable. Each instrumentthen gets its own IP address under which it can be accessed fromanywhere in the network. The parameter adjustment of the instrumentvia PACTware and DTM can be carried out from any PC. Themeasured values can be made available to individual users within theConnection of the PC viaUSBConnection of the PC viaEthernet36 VEGAMET 391 • 4 … 20 mA/HART signal conditioning instrument7 Setup with PACTware36032-EN-091116