B&B Electronics VFG3000 - Manual - Manual (Page 260)

F ORCE (T AG , V ALUE ) V LINX F IELDBUS G ATEWAY M ANAGER U SER M ANUAL
P AGE 244
F
ORCE
(T
AG
, V
ALUE
)
A RGUMENT T YPE D ESCRIPTION
Tag int/float Tag which will be forced
Value int/float Value to be written to the Tag
D
ESCRIPTION
Sets tag to value, removing any existing entries for tag from the write queue and performing
the write whether or not the operation results in a change to the value of tag. This operation
can be useful when making changes to a block of contiguous registers within a remote device,
as it will allow the comms subsystem to write all the changes in a single operation, assuming
the driver is capable of same. Using the usual assignment operator may result in “holes” in
the written data where changes are not being made, forcing the comms subsystem to perform
multiple writes.
F UNCTION T YPE
This function is active.
R ETURN T YPE
This function does not return a value.
E XAMPLE
Force(Var1,10);