CV500CN228 Omron, CV500CN228 Datasheet - Page 51

• Manufacturer Part Number: CV500CN228
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500CN228

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Procedure
Important Points
Reference
Application Example
Allocation
Screens
1, 2, 3...
The range of each memory area differs according to the PC type. Refer to
Appendix B PC Memory Map for more details.
In some cases the PT will read the specified area while the instructions are being
written to the PT Status Control Area.
Therefore when using this method, be sure to write the copy destination memory
table number word n+2 before writing the copy source memory table number
Word n+1. The data may be written to an incorrect memory table if the copy
source memory table number is specified first.
The PT reads only the words allocated to the memory tables displayed on the
screen. If words are allocated to the copy source memory table, they are used
during initialization only.
The display may be incorrect when a numeral table is copied if the display meth-
od or number of stored addresses differ.
The copy is not executed if the Copy Type is set to a value other than 0 or 1.
The memory table is copied only when the contents change. To make repeated
copies between the same source to destination memory table, set the Copy
Type to a value other than 0 or 1 then reset it to the correct value.
Prepare a number of copy source memory tables in advance and use them to
switch the display to suit the operating status.
This example switches the displayed screen by copying the character-string
memory table.
Allocate the memory as follows using the Support Tool:
PT Status Control Area: 0100
Use the Support Tool to create a screen which displays character-string memory
table entry #4 and transfer it to the PT.
DM
I/S
TC or TIM
TC or
CNT
HR
AR
LR
1. Use the Support Tool to allocate the PT Status Control Area to the PC
2. Specify the memory table to be displayed with the Screen Create functions
3. Use the Table Edit functions to write the contents of the copy source memory
4. Create a PC program to write the data described in (2) and (3) above to the
Symbol
memory.
of the Support Tool.
Specify a numeral table for a numeral display.
Specify a character-string memory table for a text display.
table.
Copy Memory Table setting words in the PT Status Control Area.
DM Area
IR Area
Timer/Counter Area
Holding Area
AR Area
Link Area
C-series PC
DM Area
CIO Area
Timer Area
Counter Area
---
Auxiliary Area
---
CV-series PC
OK
OK
NG
NG
OK
OK
OK
Allocation OK?
Section 4-3