HB700 | CPU | PMC921xEx | en | 24-04 107
Deployment CPU iC921xM-EC
System variables and status information > System variables
System variable Type - description
PND_S1_INPUTS PND_IO_512 - input process data
■ Memory area for input process data that the PROFINET device
receives from the higher-level PROFINET controller
.
PND_IO_DRIVEN_BYPLC INT - Applicative system redundancy
■ Number of the PROFINET controller currently connected to the
PROFINET device.
■ Indication from which higher-level PROFINET controller the data
in the PROFINET device come from.
– 0: No PROFINET controller
– 1: PROFINET controller A
– 2: PROFINET controller B
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