R. Stahl has revised its combined Com/Device/Hart DTM for the explosion-protected remote I/O system IS1+, thus allowing convenient access to the whole range of functions in the most recent modules. The DTM is suitable for Profibus DP environments as well as Ethernet-based systems such as Modbus TCP and EtherNet/IP. The enhanced functional range of IS1+ presents users with many new possibilities. The AI/AO and DI/DO mixed modules for instance now feature channel-by-channel I/O parameterisation and extended diagnostic options. For each module, individual channels can be configured as inputs or outputs as required. In addition to line errors, IS1+ modules now also report excessive temperatures and the need for maintenance. This enables users to prevent device failures through prompt meas-ures, thereby also averting pos-sible plant shutdowns. The DTM visualises such maintenance messages by means of symbols according to NE 107. Furthermore the unit’s performance has also been increased. Thanks to an optimised integrated Hart gateway DTM, data transfer is now much faster. This has a positive effect on most frames during parameterisation of Hart devices and during condition monitoring.
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