TOSHIBA TCPSV Acquisition module

　Creating Event Channel elements AIEV and DIEV Before creating an EventSet data base element the event channel data base elements, to be referenced, have to be created. One data base element per channel is created, AIEV for analog channels and DIEV for digital.The AIEV and DIEV elements look like the AIC respective DIC elements. There is however one main difference, the VALUE, ERR and UPDATED terminals is NOT updated by the EventSet handler. The VALUE, ERR and other related terminals are included to make it possible to transfer the dynamic process value separately, that is by using the DataSet Peripheral (DSP) communication.

Creating the EventSet element EVS(R) 

  When the channel elements to be referenced are created, the EVS(R) data base elements can be created. For each receiving element a corresponding EVS(S) element must be created in the sending end, that is in an Advant Controller 110. The EVS(S) and EVS(R) must be equally defined in sense of corresponding channel REF17 - 32 which are the reference to the channel DB-element. The AIEV and DIEV elements can be given arbitrary names. Creating Event Channel elements AIC and DIC Before creating an EventSet data base element the event channel data base elements, to be referenced, have to be created. One data base element per channel is created: • AIC for analog channels • DIC for digital.in Advant Controller 70/110/160 and DI650S for signals from DI650 in Advant Controller 100 Series.

Time Synchronization on Advant Fieldbus 100

   Time synchronization messages are sent over Advant Fieldbus 100 to synchronize the real time clocks in the different stations. One station is user defined as Time Synchronization MASTER. The other AF 100 Stations are to be user defined as SLAVE’s (or NONE - see next paragraph). The definitions are to be set in the Communication Interface units DataBase element, for example CI522, CI526, CI626, CI810, CI869, and PM810. For further info, please see the DB-element manual for the appropriate AF 100 Station. Stations that do not need to get time synchronized are defined as time synchronization NONE. The timesync is sent from the time synchronization master to the time synchronization slaves every 1024 ms. The time synchronization accuracy between stations on Advant Fieldbus 100 is < 2 ms. This means for example that the accuracy of a time stamp made with DI651 is <2 ms. The time sync accuracy is distributed in the systems as described in Figure 55.

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