GE DS200PCCAG8ACB processor card

Data writes are more complicated. If a data write simply updated the local copy and was then relayed to the processor, the other Communications Interfaces in the system would carry different data. This may cause problems for redundant links. To overcome this problem, when data is written to a Communications Interface, it is first passed to the TMR Processor and the write is acknowledged immediately by the Communications Interface (to avoid communications delays). The processor updates its own database and then sends the data back to all Communications Interfaces so that they all have the same data. This can take one or two application scans. This means that subsequent reads will receive the old data immediately after the write, until the new data has been distributed.

All changes to CI .INI parameters 

may be loaded online and will take immediate effect; the Communications Interface disconnects all communications and restarts. Communications is also restarted on an application online update and is shut down when the application is stopped.The CI can be installed in any Input / Output (I/O) slot of a controller or expander chassis, however, peer to peer communications is only supported from the processor chassis. When installed in the chassis, the CI connects to external systems via either a CI Adapter T8153 or a TC-305-01 Communications Cable with flying leads.

Module Insertion/Removal 

CAUTION: The module contains static sensitive parts. Static handling precautions must be observed. Specifically ensure that exposed connector pins are not touched. Under no circumstances should the module housing be removed. Before installation, visually inspect the module for damage. Ensure that the module housing appears undamaged and inspect the I/O connector at the back of the module for bent pins. If the module appears damaged or any pins are bent, do not install the module. Do not try to straighten bent pins. Return the module for replacement. Ensure that the module is of the correct type.

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