Entering and leaving a subroutine in a sequence

[alanled 0]

Hi I am on my 3rd step of a sequence control (s7-224XP) which requires me to use a subroutine Im having problems getting in and coming out it seems to be freezing the program. My network basicly consists of M0.2(NO), I0.4, then Im stuck, do I have to route through the subroutine to do my set and reset for the next step? or run the subroutine parallel to the set output for the next M0.3?? any help would be much appreciated. Edited 7 Oct 2007 by alanled

[rswolff 9]

by 'FREEZING' do you mean the plc freezes or your logic is not proceeding to the next step?

[alanled 0]

Im pretty sure its the sim program Im using I tried another program with subroutines in and it didnt like that either. Im going to try it on the plc tomorrow, its the first chance Ive had so hopfully it will be ok.