Command WriteRead :

This command perform a write on the GPIB device, and then perform a read to
get the answer, before returning it.

WriteRead Definition
Input Argument	Tango::DEV_STRING	String to send to the gpib device.
Output Argument	Tango::DEV_STRING	String returned by the gpib Device.
DisplayLevel	OPERATOR	..
Inherited	false	..
Abstract	false	..
Polling Period	Not polled	..
Command allowed for	All states	..