Device Batch Write Status.  Puts communication driver in "BATCH MODE" for drivers that support "Batch Writes" (i.e. writing more than one tag at a time).  Not all device drivers support this. Most devices allow only one tag to be written at a time.  An example of a driver that supports " Batch Writes" include the Fuji PLC.

Will hold output (writes) to a device when enabled (DevBWT = ON = 1). Outputs to the Device will accumulate in a buffer.

Will write output to tags accumulated in the buffer when disabled (DevBWT = OFF 0)