Hi,
I've just started trying to use S7-Graph and finding some of the features a little confusing.
For example, each step can be configured with an interlock that has to be satisfied before the actions in the step can proceed. What's the difference between that and the logic of the transition prior to the step?
e.g.
Let's say that T1 has I0.0 in it, so S2 can't become active until I0.0 is TRUE. Suppose you wanted the actions of S2 only to happen when I0.1 was TRUE, what's the difference between putting I0.1 in the interlock, and putting I0.1 in series with I0.0 in T1?
I'm sure that there'll be more similar (and possibly silly) questions over the next few days.... I've looked at both S7-Graph guides and searched Siemens site and also this forum. The general consensus seems to be "trial and error till you figure it out yourself".
Thanks,
Martin
I've just started trying to use S7-Graph and finding some of the features a little confusing.
For example, each step can be configured with an interlock that has to be satisfied before the actions in the step can proceed. What's the difference between that and the logic of the transition prior to the step?
e.g.
Let's say that T1 has I0.0 in it, so S2 can't become active until I0.0 is TRUE. Suppose you wanted the actions of S2 only to happen when I0.1 was TRUE, what's the difference between putting I0.1 in the interlock, and putting I0.1 in series with I0.0 in T1?
I'm sure that there'll be more similar (and possibly silly) questions over the next few days.... I've looked at both S7-Graph guides and searched Siemens site and also this forum. The general consensus seems to be "trial and error till you figure it out yourself".
Thanks,
Martin