3HAC044513-001/00

3HAC044513-001/00

Used DTM Function Test case Measured values  Measured value and status Station diagnosis  Module missing  Channel error (e.g.: wire break) Information  Module information HART Pass through  Read measured values from HART device  Parameter write and read Simulation  Set measured value  Automatic withdrawal of the defined measured value with interruption of communication as of DTM version 2.9.x It is sufficient to test one function exemplarily. For example, read the measured values once from a HART transmitter. If this function works properly, i.e. the way it did with the old CI920*, this function is also going to work with other S900 channels and other HART transmitters. You only have to test the DTM functions that are actually used. 2.2.2.3 Modified behavior The operating mode for communication interface PROFIBUS redundancy has been changed slightly. This concerns the application redundancy in mode 3. This mode is used exclusively by non-ABB-800xA systems. The functions of redundancy mode 3 (CI920* 1.5.9) are now included in redundancy mode 2 (CI920A* 2.1.). When using the new communication interfaces CI920A* 2.1 you should therefore configure redundancy mode 2. To do so, the GSD file 1.2.1 for parameterization mode 1 or the GSD file 1.4.2 for parameterization mode 2 (provide in ABB-Library) has to be used. The functional changes of redundancy mode 3 (CI920A* 2.1) are however marginal so that existing systems can still be operated in redundancy mode 3 if compatibility has been proven for this system in the laboratory