CV500CN228 Omron, CV500CN228 Datasheet - Page 63

• 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

Application Example
Allocation
Screens
PC Program
Operation
4-9
Description
Screen Switch
Strobe Flag
11212
Determining a Number Input to the PT
 
1, 2, 3...

 
  
 
PT
The PT Status Display Switch bit turns ON (1) in the PT Status Control Area
when the screen display switches. It reverts to OFF (0) when the PC is notified of
the screen switch. The current screen# can be read by reading the Currently Dis-
played Screen when the PT Status Display Switch bit turns ON (1).
The number of the parent screen is notified if continuous screens or superim-
posed screens are displayed.
This example reads the screen# each time the PT screen display switches.
Allocate the memory as follows using the Support Tool:
PT Status Control Area: 0100
Create several screens which can be switched with the Support Tool and trans-
fer them to the PT.
Create a PC ladder program, as follows:
PT operation when the program is run is described below.
The PT can be used as a numeric keypad to write numbers to a numeral table.
When a number is written to a numeral table with this so-called “number setting
function” an area allocated in PC memory is notified as follows:
Upgrade notify: PT Status Number Setting Strobe Flag
Upgraded table entry number: Upgraded memory table
Upgrade details: numeral table allocated word
1. When the PT screen display switches and the Screen Switch Strobe Flag
2. The new screen number notified by the PT is read and transferred to 0100.
(Bit: 11212) turns ON, the contents of 0100 are transferred to 0101. The
number of the previously displayed screen is stored in word 0101.
The number of the currently displayed screen is stored in word 0101.
Numeral table 1
12345678
@MOV (21)
@MOV (21)
DM0100
DM0101
DM0100
Allocated word (numeral table entry #1)
12345678
Table #
Number
Setting
Strobe
Flag
110
Word storing the previously displayed screen number.
Word to notify the currently display screen number.
Word storing the currently displayed screen number.
PC
5 6 7 8
1 2 3 4
PT Status Notify Area
Currently Displayed Screen
Content upgrade memory table
PT status
Start
Start + 1
Section 4-9
(1)
(2)