Introduction

Using the structure

To use this structure in a program:

1. Open the attachment. When using Notepad, turn off "Word Wrap"
2. Copy the whole structure to the clipboard
3. Paste into CX-Programmer's Data Type window (Note this is only available for CJ2 PLCs)
4. Open the IO Table and add the PRM21 unit with the correct Unit address
5. Note the SIOU address in the square brackets (e.g. [1500])
6. Create a new Global Symbol, of type STRUCT PRM21COMMON and set the physical address (e.g. to 1500)
7. The member variables of your new symbol can now be used in your programs to access the SIOU setup area