ocr: Tek 7D20 Diagram 00000000000000000000000000 2 Wait for GPIB Sevice Request > 12 : == 56.00H < GPIB addrg V ignore all 32.001 < - but opc 5E The configuration command string sent to the device in frame 1 configures it to request service when it is ready. Here the GPIB RQS icon waits for the device at address 12 to request service and polls its status. A while loop is used to wantinderinitely for the proper status (operation complete).