shift register

Dear all
i want to design a program to reject bad product so i need to track the product . but i donot know how to make a shift register on plc s7 300 could you please help me .

Mohaboty,
Can you upload a copy of the S7-300 programming manual? Is that available in Egypt? If not, someone will post a copy of the page for the Siemens S7-300 shift register.

plc shift register

Thanks for your reply.
but i donot have this manual

Maybe this is a link to the manual that you need (see Chapter 11):

Siemens Ladder Logic (LAD) for S7-300 and S7-400 Programming
http://www.pacontrol.com/siemens-manuals/Ladder-Logic-for-S7-300-and-S7-400-Programming.pdf

Dear mohaboty,

I also designed a program to keep track of the product by means of using ID Generation Logic.

It is a simple way just assign a value or ID for the product that is coming out of the station.

IF product is good assign 10(ok condition) or rejecting product 20( Not ok condition)the conditions are based on logic of program... At last remove the product with ID 20.. Only thing s to keep track of that ID by using move logic..

Hope it helps