Specifications
Advanced Configuration Features
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Result of a Reflex Block
Depending on the type of reflex block that you use, it will output either a Boolean or
a word as its result. Generally, the result is mapped to an action module, as shown
in the following table:
The result from a block is usually mapped to an individual channel on an output
module. Depending on the type of result that the block produces, this action module
may be an analog channel or a digital channel.
When the result is mapped to a digital or analog output channel, that channel
becomes dedicated to the reflex action and can no longer use data from the fieldbus
master to update its field device.
The exception is when a reflex block is the first of two actions in a nested reflex
action.
Nesting
The Advantys configuration software allows you to create nested reflex actions. One
level of nesting is supported—i.e., two reflex blocks, where the result of the first
block is an operational input to the second block.
When you nest a pair of blocks, you need to map the results of both to the same
action module. Choose the action module type that is appropriate for the result of
the second block. This may mean that in some cases you will need to choose an
action module for the first result that does not seem to be appropriate according to
the table above.
Reflex Action Result Action Module Type
Boolean logic Boolean value digital output
integer compare Boolean value digital output
counter 16-bit word first block in a nested reflex action
timer Boolean value digital output
digital latch Boolean value digital output
analog latch 16-bit word analog output