I am using Labwindows/CVI to programme some modules from Agilent and the controller is the HP8491-1394 fire bus.I want to control some registered based instruments using the SCPI command.So,I installed the HP VISA and the I-SCPI,if I use HP VEE to send a "*RST" text,the device reponsed ok,but if I use CVI to viWrite the same text to the device,it reported an err said the device did not support the command.can somebody help me?thanks