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Slot status bits – ProSoft Technology CLX-APACS User Manual

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26 QTS-

CLX-APACS

March 2015

and the corresponding alias in master mode

ALIAS,"","APACS_AO_R01S06C01","APACS_AO_R01S06C01","","APACS:8:O.Data[0] "

The alias names are the same but in the first case the program wrote to the temporary
REAL array; in the second it wrote to a ControlLogix output.

Slot Status Bits

In monitor mode, the bits do not update and are always 0. Aliases to the bits are provided
by the configuration tool for compatibility with master mode.

When you develop your control application using monitor mode, include logic that
monitors the slot status bits to determine when you can access I/O data, so that the logic
will be in place when you switch to master mode.