dchartier

Hello Ren;

Could you be more specific in your description of your problems, as seen in your last post?

For example, which manual are you following for your project, and what modules do work in your program and which do not?

Hope this helps, 

Daniel Chartier 

 I bought a book from controls-explorer.com which has a safety program in it. The link you posted to help me deal with the problems I was having contains threads which may help solve my problem but some of the CPUs used in the links are different from the one I'm using in my project so some functionalities I was expecting to see in my project's CPU were not there. It further states in some of your links I may need a safety software which I have already downloaded the S configurator software.

As you see in the attached and immediately below the remote I/O OP1, the writer has done his best to explain things but I don't think he had the book reviewed. You can see grammatical mistakes in the  description which is common throughout the book but he's not bad at programming and I'm not better at grammar anyway. 

When I insert the module as he describes in the attached photo, he explains it would ask for a password but this window you see in the photo doesn't pop up. At first when I started to configure this remote IO I ignored it not popping up and went ahead and completely configured the rest but when I clicked save and compile, an inconsistent message popped up. So I decided  to remove each module in reverse order, click save and compile, and it kept popping the inconsistency window until I removed the one he's pointing with the arrow in the photo. After that when I clicked save and compile it was fine.

To confirm if it was the safety remote DIs and DOs the writer was using that was giving me trouble, I inserted other modules without the prefix 4/8 F-DI you see in that photo but within that same IM151-3 PN HF V7.0 catalog, I saved and compiled and it was fine. I even changed the CPU for another Safety CPU, compiled and saved and it was fine.

But as the instruction in the book was not using the modules I personally placed on the remote I/O rack to test if the ones with the prefix 4/8 were the troublesome ones, I couldn't go further as mine had different functionality and settings than the one the writer had used.

I was getting to the end of the book anyway but it was a shame I couldn't finish it.

I greatly ( a president of a country loves that word ) appreciate your help.

Thanks a lot

To show  you another book I have, please see the attached. I don't think they read the book before they publish them. Fortunately I am able to workout the mistakes.

Please see the attachment in this (1of1) and the next one 2of2. They flow in that sequence from one page to the other.

Hello Ren;

- As I know S7-300 and S7-400 PLCs (and racks), there is no confusion in your images 1of1 and 2of2. The text in 1of1 says they are about to show a S7-300 rail, followed by a S7-400 rack (with backplane)mand that is what is shown. The confusion may come because there is no seperate captions for the rail and the rack, but the document is quite accurate.

- About the Hans Berger books, you will find here a link to the STL and SCL programming book I mentionned earlier:

https://www.amazon.ca/Automating-STEP-7-STL-SCL/dp/3895783412

 When looking for a title on Amazon, always check the section "People also searched for" which contains titles written by the same author, or books discussing similar subjects.

- The issues you face for your Safety program probably come from the missing software package Distributed Safety, for S7-300 F-CPUs (under Step 7 v5.x). I assure you it is an important point to consider and can explain the problems you are having. Please read the Getting Started manual I proposed earlier, it is from Siemens, it is trustable and it is free. it will serve to explain the use of this software for Safety programs and Safety certificates and passwords.And yes, you will have to consider purchasing it, or asking for a trial version (if it is available) from your local Siemens rep.

Hope this helps,

Daniel Chartier