Read-Only

About External Devices

Description

Returns whether the named device is present on the bus for which it is configured.

 VB Syntax

value = extDevices.IsDevicePresent(devName)

Variable

(Type) - Description

value

(Boolean) Variable to store the returned value:

• False - The device is not in the collection or the device fails to respond and times out when communication is attempted.

• True - The device responds when communication is attempted.

extDevices

An ExternalDevices (collection)

devName

(String) Name of the device with which you want to communicate.

Return Type

Boolean

Default

Not Applicable

Examples

present = extDevices.IsDevicePresent("MyPowerMeter" ) 'Read

C++ Syntax

HRESULT get_IsDevicePresent(VARIANT_BOOL *present);

Interface

IExternalDevices2