IDEC WindSRV - Manual (Page 28)

27
www.kepware.com
KEPServerEX5 Help
request timeouts and retries without a response.
See Also:
Device Properties - Timing .
This is a Read Only tag.
_Simulated
Class: Status Tag
The _Simulated tag is a Boolean tag that provides feedback about the
simulation state of the current device. When Read as TRUE, this device
is in a simulation mode. While in simulation mode, the server will return
good data for this device but will not attempt to communicate with the
actual physical device. When tag is Read as FALSE, communication with
the physical device will be active.
This is a Read Only tag.
_AutoDemoted The _AutoDemoted tag is a Boolean tag that returns the current auto-
demoted state of the device. When FALSE, the device is not demoted
and is being scanned by the driver. When set TRUE, the device is in
demoted and not being scanned by the driver.
This is a Read Only tag.
_AutoDemotionEnabled The _AutoDemotionEnabled tag is a Boolean tag that allows the device
to be automatically demoted for a specific time period when the device
is nonresponsive. When this tag is set FALSE, the device will never be
demoted. When this tag is set TRUE, the device will be demoted when
the _AutoDemotedFailureCount has been reached.
This is a Read/Write tag.
_AutoDemotedFailureCount The _AutoDemotedFailureCount tag specifies how many successive
failures it takes to demote a device. The _AutoDemotedFailureCount is
defined as a long data type. The valid range is 1 to 30. This tag can
only be written to if _AutoDemotionEnabled is set to TRUE.
This is a Read/Write tag.
_AutoDemotionIntervalMS The _AutoDemotionIntervalMS tag specifics how long, in milliseconds, a
device will be demoted before re-attempting to communicate with the
device. The _AutoDemotionIntervalMS is defined as a long data type.
The valid range is 100 to 3600000 milliseconds. This tag can only be
written to if _AutoDemotionEnabled is set to TRUE.
This is a Read/Write tag.
_AutoDemotionDiscardWrites The _AutoDemotionDiscardWrites tag is a boolean tag that specifies
whether or not Write requests should be discarded during the demotion
period. When this tag is set to FALSE, all Writes requests will be
performed regardless of the _AutoDemoted state. When this tag is set
to TRUE, all Writes will be discarded during the demotion period.
This is a Read/Write tag.
When using an OPC client, the system tags will be found under the _System branch of the server browse space for a
given device. The following image taken from the supplied OPC Quick Client shows how the system tags appear to an
OPC client.