IDEC WindSRV User Manual

Page 26

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Encapsulation is selected.

This is a Read Only tag.

_NetworkAdapter

Class: Parameter Tag

The _NetworkAdapter tag is a tag that allows the current NIC adapter
in use by the driver to be changed on the fly. As a string tag, the name
of the newly desired NIC adapter must be written to this tag in string
format. The string written must match the exact description of the
desired NIC in order for the change to take effect. NIC names can be
obtained from the _AvailableNetworkAdapters tag listed above. For a
serial driver, this tag will only be used if Ethernet Encapsulation is
selected.

Note: When changing the NIC selection, the driver will be forced to
break all current device connections and reconnect.

This is a Read/Write tag.

_EnableDiagnostics

Class: Parameter Tag

The _EnableDiagnostics tag is a tag that allows the diagnostic system of
the driver to be enabled and disabled. The diagnostic system places a
little additional burden on the driver while enabled. As such the server
allows diagnostics to be enabled or disabled to improve the driver's
performance. When disabled the

Diagnostics Tags

will not be

available.

This is a Read/Write tag.

_WriteOptimizationDutyCycle

Class: Parameter Tag

The _WriteOptimizationDutyCycle tag is a tag that allows the duty cycle
of the Write to Read ratio to be changed on the fly. The duty cycle
controls how many Writes the driver will do for each Read it performs.
The _WriteOptimizationDutyCycle is defined as an unsigned long value.
The valid range is 1 to 10 Write per Read.
See Also:

Channel Properties: Write Optimizations

.

This is a Read/Write tag.

Device-level System Tags for both Serial and Ethernet Drivers

Syntax Example: <Channel Name>.<Device Name>._System._Error

Tag

Description

_DeviceId

Class: Parameter Tag

The _DeviceId tag is a tag that allows the ID of the device to be
changed on the fly. The data format of the _DeviceId depends on the
type of device. For most serial devices this tag will be a Long data type.
For Ethernet drivers the _DeviceId will be formatted as a string tag,
allowing the entry of an IP address. In either case, writing a new
Device ID to this tag will cause the driver to change the target field
device. This will only occur if the Device ID written to this tag is
correctly formatted and within the valid range for the given driver.

This is a Read/Write tag.

_ConnectTimeout

Class: Parameter Tag

The _ConnectTimeout is a tag that allows the timeout associated with
making an IP connection to a device to be changed on the fly. This tag
is available when either a native Ethernet driver is in use or a Serial
driver is in Ethernet Encapsulation mode. The _ConnectTimeout is
defined as a Long data type. The valid range is 1 to 30 seconds.

This is a Read/Write tag.

_RequestTimeout

Class: Parameter Tag

The _RequestTimeout is a tag that allows the timeout associated with a
data request to be changed on the fly. The _RequestTimeout tag is
defined as a Long value. The valid range is 100 to 30000 milliseconds.
This parameter tag applies to all drivers equally.

This is a Read/Write tag.

_RequestAttempts

Class: Parameter Tag

The _RequestAttempts is a tag that allows the number of retry
attempts to be changed on the fly. The _RequestAttempts is defined as
a Long value. The valid range is 1 to 10 retries. This parameter tag

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