How screen spaces run
If two exceptions occur at the same time, screen spaces and logging execute for the first exception until the final screen space issues the .RTN command. If the second exception persists, the automatic mode reactivates on the next cycle.
If the EXSY command appears on any of your target screen spaces, any triggered exception messages appear as usual, but ASF ignores these new exceptions until the sequence is ended with the .RTN command. If the exception condition still exists, ASF proceeds to the next exception in sequence.
If you want to cancel an ASF or TSF screen space sequence while it is displaying, press any key other than a cursor key. If, for example, you press Enter, the sequence immediately ends. However, when it stops without a .RTN command, it does not return to the original calling panel, or to another screen space defined with the .RTN command.
The TSF sequences always function at their scheduled times, except when an ASF sequence is also tripped. ASF sequences take precedence over TSF. That means that if an ASF sequence trips while a TSF sequence is in progress, the ASF sequence cancels the TSF sequence. When the ASF sequence is complete, OMEGAMON for CICS (3270) returns to the panel displayed at the time that ASF tripped, but the TSF sequence does not continue. Similarly, if a TSF sequence is scheduled while an ASF sequence is already in progress, the TSF sequence is ignored.