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Rate Library Blocks
Block descriptions
This chapter provides a brief description of the blocks in the Rate library. There are no block categories used in this library. For more details about the usage of a block:
• ClicktheHelpbuttoninthelowerleftoftheblock’sdialog
• LookintheindexofExtendSim’sonlineHelpfortheblock’sname
Block descriptions
The following table is useful to get an idea of a block’s functionality in your model. More details about usage of a block can be obtained in two ways:
• LookintheindexofExtendSim’sonlineHelpfortheblock’sname • ClicktheHelpbuttoninthelowerleftoftheblock’sdialog
Catch Flow
Change Units
Convey Flow
Prioritizes the flow going through it, and thereby allows you to specify a preference for where the model’s flow should be directed. The bias from a Bias block is by definition stronger than the bias from any Merge or Diverge block.
Receives flow from non-connected Throw blocks. The Throw Flow and Catch Flow blocks (and the Merge and Diverge blocks in certain modes as well) can be used to move flow without the use of connection lines.
Changes the flow unit of measurement. Blocks that are connected together through flow connections and share the same flow unit are called a unit group. The Change Units block uses the conversion factor to create a new unit group. This causes the blocks downstream of the Change Units block to be in a unit group different from its upstream blocks.
Add a delay to the flow available at the output of the block. The Convey Flow is FIFO and can be accumulating or non-accumulating.
Distributes the input flow to two or more outputs. Systems modeled using discrete rate technology frequently have one flow stream that needs to be split (or diverged) into multiple streams (referred to as branches). It has seven different rule-based options that define how the inflow will be distributed across the outputs.
Views and displays information about the flow that passes through it. The block has several filter, display, and alert options as well as an option to store the history in a database at the end of the run.

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