User manual

58 Using the Relay Multiplexer Chapter 2
Synchronizing the
Multiplexer
This section discusses synchronizing the multiplexer module to other
instruments when making measurements.
Example: Synchronizing
Instruments
This example shows one way to synchronize instruments by switching a
signal to be measured by a multimeter. This program verifies that the
switching is complete before the multimeter begins a measurement.
The example uses GPIB select code 7, primary address 09, and secondary
address 03 for the multimeter and GPIB select code 7, primary address 09,
and secondary address 14 for the multiplexer.
10 OUTPUT 70914;"CLOS (@101);*OPC?"
!Close bank 1, channel 1 and request
confirmation that the channel is closed
20 ENTER 70914;Opc_value
30 OUTPUT 70914;"CLOS? (@101)"
!Read confirmation
40 ENTER 70914;A
50 OUTPUT 70903;"MEAS:VOLT:DC?"
!Channel is confirmed closed, so the
measurement can be made
60 ENTER 70903;Meas_value
70 PRINT Meas_value
80 END