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TRICONEX 2401 base card

The DIEV appearance is similar and is not further described in this document. 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.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 elements.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 and DI650S for signals from DI650 in Advant Controller 110.

When the channel element to be referenced are created the EVS(S) data base elements are created. For each sending element a corresponding EVS(R) element must be created in the receiving end, that is in an Advant Controller 400 Series. The EVS(S) and EVS(R) must be equally defined in sense of corresponding channel elements. In AC 110, it is not allowed to reference to DI650S signals of the same DI650 device from different EVS(S) elements.

Time Synchronization on Advant Fieldbus 100

 Time synchronization messages are sent over Advant Fieldbus 100 to synchronize the real time clocks in the different station. 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 CI520/CI522/CI526/CI626/CI810/PM810 interface units DataBase element. 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 3-18.

Message transfer on the Advant Fieldbus 100 is used for EventSet, diagnostics, and for loading PC programs to remote Advant Controller 70 or 110 stations. The communication layers in the communication interfaces and the Advant Controller provide a transparent means of communication.

The Advant Fieldbus 100 runs at a data rate of 1.5 MBits/second. Some of the information is, however, used for preambles and protocol overhead, so the net data rate will be somewhat less.