Omron CX-Programmer 9, Operation Manual

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PART 1: CX-Programmer
CHAPTER 4 – Reference OMRON
CX-Programmer _Page 100
Memory View
Use the Memory View to check the amount of Used and Free program memory in the PLC together with the
Total program memory size of the PLC. To show the correct amount of the program memory sizes of the
connected PLC, upload the program from the PLC in advance.
The program memory sizes of CS/CJ/CP series PLCs will be shown in Steps and Words for other PLCs.
Note: When function blocks are used with CS/CJ-series CPU Unit Ver.3.0 or later or CP-series CPU
Unit, the size of the function block definition and the number of function block definitions is
displayed in addition to the
Used UM , Free UM , and Total of the UM.
•
The Used FB , Free FB , and Total boxes in Function Block field refer to the size of the function block
definitions. The values are displayed in step units. 1 step = 4 bytes, so the function block program
memory capacity (K bytes) in the CPU Unit's internal flash memory is the value multiplied by 1,024
and divided by 4.
• The Used # , Free # , and Max # fields under Function Block refer to the number of function block
definitions.
Mnemonic Program Editing
The mnemonic view of a program allows mnemonic instructions to be typed directly. This feature is for
advanced users who wish to bypass the more structured programming available in the Ladder program.
Select the View Mnemonics button from the toolbar. The Mnemonics view is displayed in the
Diagram Workspace.
Whenever mnemonic instructions are entered, the Ladder program of the program is updated. When a complete
rung has been formed by the entered mnemonics, CX-Programmer normalizes the new mnemonics and redraws
the rung.
It is possible that during the entry of the mnemonics, the rung can not be drawn in ladder form. In this case, it is
shown as a statement list box on the Ladder program.
In order to enter a comment for a rung into the Mnemonics view, enter the character ‘`’ followed by the text.
This type of comment must go at the start of a rung’s mnemonics.