Agilent Technologies E8462A, User Manual

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Agilent E8462A Relay Multiplexer Command Reference 109
Example
Cycle through a self-test and return the number of times it failed.
TEST:NUMB? 110,5
Cycle through self-test 10 five times on
card number 1 (test_number parameter is
110) and return the number of times the
self-test fails.
Test all relays on the module.
SCAN:PORT ABUS
Set the module port to analog bus.
FUNC 2,WIRE1X8
Set module number 2 to the 1-wire by 8
MUX mode.
TEST:NUMB? 299,4
Cycle through self-test 99 four times on
card number 2 (test_number parameter is
299) and return the number of times the
self-test fails. This test operates all relays
on the card.
cc99
This is a special test that scans through all relays. DO NOT
USE this test when the card has terminal block connections.
NOTE: The Multiplexer function must be set to the eight 1-wire
MUX mode (
[ROUTe:]FUNC cc,WIRE1X8
where cc is the
card number) to test relays C100 through C108. Otherwise,
these relays are not tested. This is a precaution taken that
prevents shorting of field wiring if terminal block connections
are inadvertently left connected.
This test first opens all the relays, then closes one relay at a time.
Register read-back is used to determine if all bits of all relay
registers are independent. Then it restores the original relay
pattern. This test is not performed during a *TST? self-test since
the test disturbs the switch connections.
test_number Description