When trying to obtain Plan History on a remote Db2 Subsystem the following error can occur within Detector for Db2 for z/OS (PDT):
DT663E: Cross System Error: Timeout
There is no message in the Xmanager task.
Increase the Xmanager TIMEOUT parameter for Cross System timeout.
For example, add the TIMEOUT parameter (150 seconds) to the Xmanager PROC and restart the Xmanager tasks.