Yaskawa MP900 Series Ladder Programming Manual - Manual (Page 53)

4.3 User Functions
4.3.3 Calling a User Function
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4.3.3 Calling a User Function
You can call a user function by using a FUNC instruction in the ladder drawing.
This section describes how to call the user function that was created in the previous section from the high-speed draw-
ing (DWG.H).
„ Example for Calling the FUNC01 User Function from DWG.H
Program a FUNC instruction in DWG.H as shown below.
This diagram shows a conceptual image of what the programming shown above accomplishes.
In this example, when DW00000 in DWG.H is set to 10, DW00001 becomes 20 and DW00002 becomes 30, demon-
strating that the user function was called correctly.
Input defined in
the user function
Output defined in
the user function
Program number of
the user function to call
XB000000 to XB00000F
XW00001
XW00002
XW00016
YB000000 to YB00000F
YW00003
YW00016
X Registers
(Function Input Registers)
Y Registers
(Function Output Registers)
Registers within the FUNC01 User Function
DW00001
Values that are set Undefined values
DW00002
YW00001
YW00002
DW00000
×2
×3
IN OUT1
OUT2