explain program on exam

[maxim]

yesterday i had an exam of plc programming

we had this


A I1.1
L s5t#200ms
SD T1

A T1
= I1.1

=> we needed to explain that, but on the last line, there is a I and not an Q, it looks weird but the teacher said it works, but i don't understand it...

can someone help me

 

[OZEE]

What do you think it means?? I think it all looks weird because it's not Allen Bradley, but yes, it does work... Just "looking weird" isn't a legitimate evaluation of function.

 

[Jeebs]

Well what would happen?
What does the code do?

Status of I1.1 when it's off?
Status of I1.1 when it's on, but prior to the 200ms timer being reached?
Status of I1.1 when there's jitter, ie on off on off within the 200ms timer?
Status of I1.1 after being on for 200ms?