DB vs PLC Tags

[CanaanP]

Hi,

New to S7 but have a lot of experience with TIA Portal on HMI side from my automotive days. Now I'm working with Siemens PLC using TIA Portal v14 and 15 and struggling to understand the benefits of using DBs instead of traditional PLC tags. Can someone point me to a resource that's good for bring Allen Bradley guys over to the dark side of Siemens?

Thanks

[pcmccartney1]

I'm sure there are better opinions, but a DB is the equivalent of a udt.  Eventually leading to it's use in a FB with an instance equating to an AOI.

[Moggie]

this may help -

(for use in a "class" on the differences but may be worth a read?)

https://www.industry.usa.siemens.com/automation/us/en/formsdocs/Documents/2016%20MIA-%2056%20Rockwell%20to%20Siemens%20TIA%20Portal.pdf

[CanaanP]

On 5/24/2019 at 1:01 AM, Moggie said:

this may help -

(for use in a "class" on the differences but may be worth a read?)

https://www.industry.usa.siemens.com/automation/us/en/formsdocs/Documents/2016%20MIA-%2056%20Rockwell%20to%20Siemens%20TIA%20Portal.pdf

Thanks, this was quite helpful!