Omron CX-Process Monitor Plus 2, Operation Manual

Page: 67 / 272

52
Data Exchange Method Section 3-1
3-1 Data Exchange Method
3-1-1 Overview
The function blocks listed in the following table must be registered/connected
in the Loop Control Unit/Board in order for the Monitor Plus Software to
access data in the Loop Control Unit/Board. Data is exchanged using the
function blocks and the tags set in those function block.
There are 4 possible cases, as shown in the following table.
Note Each function block’s ITEM list indicates which ITEMs will be read or written.
(An ITEM will not be read or written if “–––” is indicated for the R/W Mode in
the
According to HMI or According to Monitor Plus columns.)
3-1-2 Exchanging Data with Function Blocks
This section explains how to use Monitor Plus to read and write data in func-
tion blocks within the Loop Control Unit or Board.
Loop Control Unit Monitor Plus can be used to set function block data with Receive All Blocks
(Block Model 461) and monitor function block data with Send All Blocks (Block
Model 462).
Setting Function Block Data from Monitor Plus
Monitor Plus writes data directly to the specified function block’s tag. The
Receive All Blocks (Block Model 461) function block must be registered in
advance.
Case Data
exchanged
Loop Control Unit Loop Control Board
1 Function block
(See note.) 1. Register Send All Blocks
(Block Model 462) and Re-
ceive All Blocks (Block
Model 461).
2. Set CSV tags in the func-
tion blocks.
1. Set the HMI function set-
tings in the System Com-
mon Block (Block Model
000).
2. Set CSV tags in the func-
tion block.
2 Analog signals When monitoring analog signals:
1. Register the Input Selector (Block Model 162).
2. Set the tags for Monitor Plus in the Input Selector (Block
Model 162).
3. Connect the function block’s analog signals in the Input Se-
lector (Block Model 162).
When setting analog signals:
1. Register the Constant Generator (Block Model 166).
2. Set the tags for Monitor Plus in the Constant Generator
(Block Model 166).
3. Connect the function block’s analog signals in the Constant
Generator (Block Model 166).
3 Contact signals 1. Register the Contact Distributor (Block Model 201) and In-
ternal Switch (Block Model 209).
2. Set the target and source designations in the Contact Dis-
tributor (Block Model 201).
3. Set the tags for Monitor Plus.
When setting contact signals:
Specify the Internal Switch’s (Block Model 209) ITEM tags
as settings
When monitoring contact signals:
Specify the Internal Switch’s (Block Model 209) ITEM tags
as displays.
4 User link table None Set the user link table.