User manual

B-48 E6198B Switch/Load Unit User Manual
B Register Definitions
• For OAR (Write Only):
0 = no change
1 = causes all relays to open (non-latched)
Mezzanine Card #1 Configuration (R) Base + 3
h
This register reads configuration information from the #1 upper
and #1 lower mezzanine cards. Card configuration is
determined by the user to distinguish different load
configurations. There are four bits available for each card,
which permits identification of the mezzanine card location and
proper orientation. Use the action
loadCardGetInfo to read
this register. Figure B-12 shows the layout of the mezzanine
cards.
The default read back is FF
h
, but you can pull down bits to zero
as required to create a configuration byte unique to the loads
installed.
Figure B-12 Mezzanine Card Layout
#1
Uppper
#2
Uppper
#3
Uppper
#3
Lower
#2
Lower
#1
Lower
Bit 76543210
Purpose
MC1L.3 MC1L.2 MC1L.1 MC1L.0 MC1U.3 MC1U.2 MC1U.1 MC1U.0
Setting state state state state state state state state