PIE709Ctrl Class Commands
Name	Input type	Output type	Level	Description
State	DEV_VOID	DEV_STATE	OPERATOR	This command gets the device state (stored in its device_state data member) and returns it to the caller.
Status	DEV_VOID	CONST_DEV_STRING	OPERATOR	This command gets the device status (stored in its device_status data member) and returns it to the caller.
WriteRead	DEV_STRING	DEV_STRING	OPERATOR	send a command to the controller and return the reply
Write	DEV_STRING	DEV_VOID	OPERATOR	write command to controller which will not return anything
WriteReadBin	DEV_STRING	DEV_STRING	OPERATOR	send a command to the controller and return the reply
WriteBin	DEV_STRING	DEV_VOID	OPERATOR	write command to controller which will not return anything