Read Signal From The External Handler - Agilent Technologies 4396B Gpib Programming Manual

Read Signal from the External Handler

The command returns the 4-bit data value of the IN 0-3 lines.
Lines 100 to 160 wait for the external handler to set signal on line IN 3 to TRUE (1).
Figure 10-5. Reading Signal from the External Handler
Using the Analyzer's I/O Port 10-3