HP 86060C Series, User Manual

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4-39
Programming
Example 4: Input/output multiplexers
Example 4: Input/output multiplexers
This program illustrates how two HP 86060C-series switches may be used to
function as input and output multiplexers in an automated test system. For
this example, two 1
×
8 switches are used to test 8 optical devices under test.
The block diagram for this test system is shown below.
Block diagram of the test system
This example test system uses an HP 8153A optical multimeter equipped with
an HP 81554SM laser source and an HP 81532A optical sensor. This program
periodically (every 5 minutes) measures the optical power through each
device under test and displays an error message if any measured power drops
below 1 microwatt.
Listing
10 INTEGER In_switch_addr,Out_switch_addr,
Opt_meter_addr
20 INTEGER Meas_count,Current_dut
30 REAL Watts_read,Min_power
40 DIM In_switch$[80],Out_switch$[80],Dummy$[50]
50 !
60 CLEAR
SCREEN
70 PRINT "THIS PROGRAM MEASURES ALL DUT POWERS EVERY 5
MINUTES."