2.5ms interrupt subroutine to control the output

[Nancygogogo]

Hi everyone,

I have a question about the 2.5ms interrupt subroutine, the PLC I have right now is SM35-J-T20 which only has 10ms as the minimum resolution. However, I want to reach the 1ms, so I found a 2.5ms interrupt subroutine to control the output which can control the output with the immediate elements, But I cannot find the example, or how to combine the 2.5ms interrupt subroutine with the main routine. 

Can anyone give some advice? Thanks.

[Ausman]

Hi Nancy,

perhaps it would be helpful to look at all of this topic, but specifically my post here that has an example: 

But this still isn't going to get you 1ms.....only 1.25ms at best.

cheers,

Aus

[Joe Tauser]

Open the Help and search for "Interrupt".

If you name a subroutine "_Interrupt 1.25 mS" it will automatically be called every 1.25 ms.

Use Immediate instructions to read inputs and write outputs outside of the normal scan.

Post your code if you have more questions.

Joe T.