Publication No. 980935 Rev. A
3152B User Manual
Model
– shows all instruments from the 3152B family that
ArbConnection detected in the chassis. Leave the group field blank
if you do not wish to synchronize a particular module.
Address
– shows the logical address associated with the listed
module. The address is set using a DIP switch which can be
accessed when the module is removed from the chassis.
Chan
(Channel) – this field is relevant for the 3100-3152B-3152B
model which has two 3152B units installed in a single VXI slot. In
this case, each instrument operates as a stand-alone generator but
also can be configured as a dual-channel instrument. The example
in Figure 4-22 shows this instrument with address 13 installed in
slot 3. Channel 1 is always the top instrument and channel 2 is
installed below and if selected as a group, by default, channel 1
becomes the master module. There is no way to exchange channel
designation but if you move channel 2 up, its state is re-configured
to master and channel 1 to servant.
Slot
– shows the slot number where ArbConnection found a
specific module. The location of the module is extremely important
because it defines how it may be synchronized, as explained in the
Path description below.
Path
– defines the connection between synchronized modules.
This field has three options: ADJ, LBUS and ECLT.
ADJ
– defines a connection between two adjacent 3152B in
a single 3100 carrier. Notice Figure 4-23; it shows the model
3100-3152B-3152B in slot 3. After grouping in group 1, the
two instruments are automatically assigned the ADJ path.
This can not be changed because of the nature of
synchronization of two instruments in a single slot. Also note
that Channel 1 is now master and channel 2 is the servant.
LBUS
– defines a connection between adjacent slots using
the VXI backplane local bus lines. In this case, the master is
always on the left and the servant units are adjacent to the
master on the right side. It is not allowed to break the chain
of instruments because local bus lines connect instruments in
a daisy-chained link. Note in Figure 4-24 that slots 7, 8 and 9
are daisy-chained through the local bus. The instrument in
slot 7 is the master unit and the others are servants.
ECLT
– defines a connection between any slot using the VXI
backplane ECLTrg lines. In this case, the master can be
assigned to any instrument in the chassis regardless if it is on
the left, right or mixed with other instruments in the chassis.
The example in Figure 4-25 shows how to form two groups in
a single chassis where group one synchronizes two channels
and group 2 synchronizes three different instruments in a
specific master-servant configuration. Note that slot 9 was
moved up and assigned master while slots 7 and 8 became
servants.
Ph. Offs
(Phase Offset) – defines an offset between the master
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