| CIT has confirmed this to be a problem in
Citect for Windows versions 3.xx, 4.xx and 5.xx. With the settings
(Retry + 1) * TimeOut (seconds) > Watchtime, then under a
timeout condition, the IO Server may time out the request before
the driver can time out the request. This situation results in the
"Driver Not Responding" error occuring in the kernel. Users using
the default values for a driver should normally not be affected by
this problem, as the default values for a driver should satisfy the
above equation. The change prevents the IO Server from timing out a
request for a default period of 5 minutes. This should always allow
a driver to timeout a request before the IO Server. The new IO
Server timeout parameter introduced by this change is [IOSERVER]
CancelTimeout, and is measured in seconds. The default is 300
seconds (5 minutes). This parameter should not normally need to be
modified.
This problem has been fixed in version 5.21 Service Pack B.
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