Omron CS1W-LC001 Operation Manual page 101

Configuration of Function Blocks
Connecting ITEM settable parameters
To write constants (fixed values)
Example
To write variables (analog signals)
Example
Constants (fixed values) or variables (analog signals) are set by the Constant
ITEM Setting block (Block Model 171) or Variable ITEM Setting (Block Model
172).
Set constant 5000 (50.00) to ITEM023 (local Set Point) of the Basic PID
block of block address 001.
Step Ladder 031
Program
block
Send command ITEM
Block address: 100
ITEM number
011
021
Set the value of ITEM029 (current Set Point) of the Basic PID block of block
address 001 to ITEM009 (H high alarm setting) of the Basic PID block of
block address 002.
Block address: 001
Basic PID block
029
Note When connections between function blocks are set by ITEM data, do not
mistake the ITEM type (for example, specify a connect ITEM as the source
designation for an analog signal).
Block address: 100
Constant ITEM
Setting block
021 011
Constant E1:
Constant 5000
Destination
designation ITEM
Data
001023
5000
Block address: 100
Variable ITEM
Setting block
011 031
Output from
041
Step Ladder
Program
block
Variable
Current SP
Send command ITEM
Block address: 100
ITEM number
011
031
Block address: 001
Basic PID block
023
ITEM setting parameter:
Local SP
Block address: 002
Basic PID block
009
ITEM setting parameter:
Destination
H high alarm setting
designation
Data
001029
002009
Section 3-1
83