Configure Function
Blocks
© Yokogawa System Center Europe Sheet 1
Objectives
Add User Created Function Blocks to a configuration
Program Blocks
Derived Function Blocks
Actions
Add Standard Function Blocks to a configuration
Recognize different Data Types.
Reference CG39-20 Rev. 4
© Yokogawa System Center Europe Sheet 3
Create Program Blocks
© Yokogawa System Center Europe Sheet 5
Function Block Types List
© Yokogawa System Center Europe Sheet 7
Function Block Declaration
© Yokogawa System Center Europe Sheet 9
Select a Block from the List
© Yokogawa System Center Europe Sheet 11
Paste a Block on the Sheet
© Yokogawa System Center Europe Sheet 13
Create Derived Function Blocks
© Yokogawa System Center Europe Sheet 15
Copy a Function Block type
© Yokogawa System Center Europe Sheet 17
Convert a DBF to a UDBF
© Yokogawa System Center Europe Sheet 19
Find a Block in the Configuration
Path
© Yokogawa System Center Europe Sheet 21
Create Actions
© Yokogawa System Center Europe Sheet 23
Actions and How They Work
Program Block
Resource Sheet
Derived Block
Sheet Action Block
Action Block Body
Body Sheet
© Yokogawa System Center Europe Sheet 25
Selecting Standard Function
Blocks
© Yokogawa System Center Europe Sheet 27
Data Types
Numbers
• REAL Numbers – Must contain a decimal
• INTEGERS – Whole numbers
– INT – 2-byte signed value
– SINT – 1-byte (single) signed value
– UINT – 2-byte unsigned value
– USINT – 1-byte (single) unsigned value
– DINT – 4-byte (double) signed value
– UDINT – 4-byte (double) unsigned value
© Yokogawa System Center Europe Sheet 29
Use of Data Types
All variables have a Data Type assigned to
them.
All nubs on function blocks have a Data Type
assigned.
The nubs must have the proper Data Type
connected to them.
If the wrong Data Type is connected to a block nub
or variable, a pop-up box will appear with the
following message: “Data type mismatch.”
© Yokogawa System Center Europe Sheet 31
A Standard Logic Block
_00001
OR
BOOL IN01 OUT BOOL
BOOL IN02
© Yokogawa System Center Europe Sheet 33
A Standard Compare Block
_00002
GT
ANY IN01 OUT BOOL
ANY IN02
© Yokogawa System Center Europe Sheet 35
The SET_VAL Block
_00003
SET_VAL
BOOL EN ERROR BOOL
STRING DEST OUT ANY
ANY DATA
© Yokogawa System Center Europe Sheet 37
The SET_VAL Destination Address A P A C S P A T H IN G
R eso urce S h eet N am e: A C M 1
|G L O B A L _ V A R |
A F
PROGRAM1 PROGRAM2
|G L O B A L _ V A R |
SETVAL_1
SET_VAL
EN ER RO R
D EST O UT
D ATA
B C
VAR1 DER_B LK_2 VAR 2 D E R _B LK_3
|G L O B A L _ V A R | |G L O B A L _ V A R |
D E
REPCYCL P ID
EN O UT VAR 4 PV O U T
VAR3 PC TO N ET SP ER RO R
T IM R E M FD BK
S O F T L IS T
AU TO
S O F T L IS T P G ( G a in )
IN IT
O F F T IM E T I ( I n t . T im e )
O N T IM E T D (D e r. T im e )
SETVAL_2 S ETV AL_3
SET_VAL SET_VAL
EN ER RO R EN ER RO R
D EST O UT DE ST O UT
D ATA D ATA
© Yokogawa System Center Europe Sheet 39
Section Review
1. On what sheet must you be in order to create
a Program block?
2. Is it possible to re-use a derived function
block?
3. Give an example of how might use a value
that is of the UDINT type.
© Yokogawa System Center Europe Sheet 41
