Mnemonics - Omron CX-PROCESS TOOL V5.2 - 12-2009 Operation Manual

Creating Step Ladder Program Instructions
Before Conversion

3-7-2 Mnemonics

The user may click the
tion as the Refresh Button in the above Mnemonics Dialog Box.
Note 1. Unless the step ladder programs are converted, the cross-reference func-
tion will not be available.
2. If an Internal Switch occurs in a ladder diagram that has been created, the
Internal Switch will appear as shown below. The OUT instruction and LOAD
instruction in mnemonics will be automatically created and the operand will
be the ITEM of the Internal Switch (in block address 349 by default).
Example: The OUT instruction and LOAD instruction will be automatically
created with internal switch 349011 as the operand.
Up to eight internal switches can be created. An error will result if the user
attempts to convert a step ladder program with nine or more internal
switches.
Take the following steps to create the step ladder programs in mnemonics.
If the program may be converted to a ladder diagram later, observe the same
restrictions on the number of lines and columns for ladder diagrams when creat-
ing the program in mnemonic code. The following table shows the required set-
tings for ITEM200 (the Mnemonic Flag) for various situations.
Ladder program
conversion
Required
Not required
Not possible
Note 1. Each program block in a ladder diagram can have 22 lines and 10 columns,
but there is no limit on the number of lines and rows when mnemonic code is
used. If a program is created in mnemonic code and contains a program
block with more than 22 lines or 10 columns, an error will occur if the pro-
gram is converted to a ladder diagram (disassembled).
icon instead, to execute the same the func-
After Conversion
Max. program block size
22 lines × 10 columns (or fewer)
---
More than 22 lines × 10 columns
Section 3-7
ITEM200 (Mnemonic Flag)
setting
Set to 0.
Set to 1.
Set to 1. (It will not be
possible to convert to ladder
diagram format.)
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