Posted 9 Jan 2018 Hello guys, I need help. I have an OMRON PLC; CJ2M series which I am not very familiar with. I need to do comparisons, but I see that do that I can't just compare with a value. It looks to me that I have to store the value I need to use to compare in a memory address and reference to the memory address for my comparison. Is it possible for me to compare using a value and not have to first go through a memory address? Is there a way to use the instruction to store the value in a memory location ? Or do I specifically have to use CX-Designer for me to wrote the value to a memory location? Thanks in advance. Share this post Link to post Share on other sites
Posted 9 Jan 2018 I depends what you want to compare. For example use = inline - say input word 2003 &2375 to an output. Use the inline instructions such as =, >, <, =>, =< - there are a heap of them. Share this post Link to post Share on other sites
Posted 9 Jan 2018 I have attached two Pictures. In the first picture (OMRON), everything is OK. In the second picture (OMRON2), the instruction remains red because I was trying to compare direct with a value of 105. Does OMRON not allow that? Share this post Link to post Share on other sites
Posted 9 Jan 2018 (edited) Hallo, 105 isn't value it is CIO address. It will be #105 (Hexa) or &105 (Decimal). Edited 9 Jan 2018 by vasekd Share this post Link to post Share on other sites
Posted 9 Jan 2018 The instruction will also show up red if there is no resultant output. & in front of a number is word type INT or UINT - # is word type HEX. You can use either but have to be aware that there may be confusing results. As you have shown in your example 105 is a CIO address - that also is fine and can be used that way - in my typed example above 2003 is a CIO address and &2375 is a constant - this can be UINT or INT. In the example above my intent was that it is a UINT. Omron is very flexible - the reason I love them. Share this post Link to post Share on other sites
Posted 9 Jan 2018 Now I understand. Thank you very much. Share this post Link to post Share on other sites