Read File#

This task reads data from a file on OPC UA server using the File Transfer feature. To be used with OPC UA driver in Client mode.

Inputs#

Name	Data Type	Description
nodeId	`String`	The node id where the file will be read
Activate	`any`	Activate the task

Name	Data Type	Description
rawData	`Buffer`	The raw data from the file
Success	`Boolean`	If there was no problem emits a true
Error	`Error`	Error that occurred during the processing of this task

On the General Tab, you have the usual settings and the following settings:

Name	Data Type	Default	Description
File Node Id	`String`		The node id where the file is
Read File Command	`String`	.Read	The syntax that allows to call the read command, for instance, SomeFileIdentification.Read. Useful to prevent break of compatibilities.
Get Position Command	`String`	.GetPosition	The syntax that allows to call the read command, for instance, SomeFileIdentification.GetPosition. Useful to prevent break of compatibilities.
Delete File Command	`String`	.Delete	The syntax that allows to call the delete command, for instance, SomeFileIdentification.Delete. Useful to prevent break of compatibilities.
File Chunk Size	`Number`	0	Configuration for the size of the Chunks. If no value or a zero has been provided, the chunks will default to maximum allowed on the protocol (16000000 Bytes)
File Size Syntax	`String`	.Size	The syntax that allows get size attribute, for instance, SomeFileIdentification.Size. Useful to prevent break of compatibilities.
Automatically Delete File	`Boolean`	false	Flag to indicate if the file shall be deleted after a successful call
Directory Node Id	`String`		The node id of the directory where the file is located. Necessary for the Delete command. Only can be called from the direcotry object

Activate will trigger a message to the driver. The contents of the message are the values received in the inputs.

All the communication with the equipment is handled by the driver in the backend.