95x Series Operating Manual - May 17, 2022
Page
93
of
155
NOTE
–
the 95x does not change the states of switch matrix units unless commanded to do so by a SWITCH test
step. It is recommended to finish a test sequence using switch matrix units with a SWITCH type step setting the
relays to best “quiescent” state for the users’ specific system (generally the OFF state
for all relays).
EXAMPLES
Example 1 -
The user wishes to set a single Vitrek 964 to engage (ON) relays #1, 28 and 47; all other relays are to be disengaged
(OFF).
Since a Vitrek 964 is being used, no delays are needed.
The 64-bit code for the required state is (splitting the binary into groups of 8 bits for easier viewing)
–
00000000 00000000 10000000 00000000 00010000 00000000 00000000 00000001
In hexadecimal this is 00 00 80 00 10 00 00 01 (keeping the same grouping as above)
The SWITCH step is configured as
–
Seq 1 Step 1 SWITCH
PRE-DELAY: 0.00sec
POST-DELAY: 0.00sec
#1: 0000800010000001
Example 2 -
This is the same as example 1 above but using a Vitrek 948.
Since a Vitrek 948 is being used, a 0.25sec post-switch delay is needed.
The 56-bit code for the required state is (splitting the binary into groups of 8 bits for easier viewing)
–
00000000 10000000 00000000 00010000 00000000 00000000 00000001
In hexadecimal this is 00 80 00 10 00 00 01 (keeping the same grouping as above)
The SWITCH step is configured as
–
Seq 1 Step 1 SWITCH
PRE-DELAY: 0.00sec
POST-DELAY: 0.25sec
#1: 00800010000001
SPECIFICATIONS
Pre- or Post-Switch Delay
0.00 to 9999sec
<(± 0.05% ± 20ms) accuracy
TEST SEQUENCE TIMING CONTROL (PAUSE AND HOLD)
The PAUSE type is generally used when the user needs to have a fixed delay inserted into a test sequence to allow
for wiring or DUT settling between two test steps.
The HOLD type is generally used when the user needs to have some user interaction to occur prior to continuing
the test sequence. A timeout is provided which, if it occurs, will abort the entire sequence if the user does not
provide user interaction (e.g., pressing the
START
button, asserting the DIO interface START signal, or sending the
interface CONT command).
CONFIGURING
An example PAUSE type menu is as follows
–
