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Command Series Migration to MOD 30ML
Function Codes – Gallery Tutorial
CHANGING ENGINEERING RANGES AND ALARM TRIP VALUES
18. The FC156 PID (PV/LOCAL SP) has default values for the process variable range (0
to100). We need to change this to 0 – 200 to match the input range defined in step 14.
Open the compound by first selecting it and then by clicking on the right mouse button. A
context sensitive menu will appear as shown in the next figure:
Figure 2 .42.
Open Compound
Click on the Open Compound item from this menu. This will open the compound and
display the function blocks inside. See the next figure:
Figure 2 .43.
Inside the FC 150
PID (PV/LOCAL
SP) Compound
Select the function block ENG (Expression block). This function block is where you
would set the engineering ranges, alarm setpoints and initial PID settings. Double-click on
it to open it.
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