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B&B Electronics VFG3000 - Manual User Manual

Page 94

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E

XPORTING

T

AG

M

APPINGS

V

LINX

F

IELDBUS

G

ATEWAY

M

ANAGER

U

SER

M

ANUAL

P

AGE

78

not need to push this button unless you have removed and then replaced tags, and wish to
repair the expression that will have been broken when the tags were deleted.

E

XPORTING

T

AG

M

APPINGS

Selecting the Tags icon in the left-hand pane of the Tags window will also allow access to the
tag import and export facilities. The Export to File button can be used to export the tag names
and mappings to a CSV file for subsequent editing in Microsoft Excel or some other suitable
tool. The Import from File button can then be used to re-import the file, changing the tag
mappings in line with the changes made to the file. These facilities are useful when porting an
application from one PLC to another, as it allows all the mappings to be changed in a single
operation. The import facility can also be used to create tags to correspond to data mappings
that have been exported into a CSV file from a B&B Electronics Modular Controller.

L

OGGING

E

VENT

M

ESSAGES

When the Tags icon is selected in the left-hand pane, the right-hand pane of the Tags window
contains options to control the logging of the messages generated by the alarms and events
attached to each tag…

The Send to Raw Port property is used to indicate which communications port

events should be printed to. The port in question must have a raw port driver
bound to it as described in the Using Raw Ports chapter. Note that a serial driver
or a TCP/IP driver may be used as required by the application.

The Save to CompactFlash property is used to enable the writing of events to

CSV files on the card fitted to the Gateway. Events are stored using techniques
similar to those for data logging. The New File Every and Retain at Most
properties control how files are allocated. Refer to the Configuring Data Logging
chapter for information on how the data is written and how files are named.