Micromod MOD: 30ML Functions Data Base Reference - Manual (Page 88)

MOD 30ML Data Base Reference
BUILT-IN ANALOG OUTPUT BLOCK
2.8.1 Built-In Analog Output Block Operation
The Built-In Analog Output block is a data repository for the instrument. One block
services one analog output from the built-in circuit. All values are buffered in one of
five possible task state tables. Process output routines use these tables to pass
data between the built-in analog output blocks, which are updated every 50
milliseconds, and the process algorithm blocks which run at the configured scan
group interval.
The input connected to the AOUT block is scaled and latched according to the
configuration of the block parameters. All valid data is then sent to the output
circuit during each 50 millisecond scan cycle.
Built-in analog output blocks can generate diagnostic errors based upon the
following possible conditions:
• I/O communications error
• Output circuit status error (used to determine when to get output circuit error
code)
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