Siemens SIMATIC PCS 7 SMART - Process-Related Meaning of the Cfc_Nk11 X CFC Chart

● The plant operator or an upstream controller controls the "MotL" block.
● The "Pcs7DiOu" block takes the control command from the "OosAct" output of the "MotL"
block and outputs this to the pump in the process.
6.3.6 Process-Related meaning of the "CFC_NK11x" CFC chart
CFC_NK11x
CFC_NK11x is used for valve control. The blocks mean the following in this case:
● The "Pcs7DiIn" block provides feedback on the status of the valve - open or closed, to the
"VlvL" block.
● The "VlvL" block switches the valve according to the external controller settings or operator
settings. The control command is passed on from the "OosAct" output via the "Pcs7DiOu"
output driver to the valve.
Creating CFCs
6.3 Technological significance of the charts in the project
PCS 7 SMART Getting Started - Part 1 (V9.0 with APL)
Getting Started, 12/2017, A5E42181435-AA 73