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B
Register Definitions
B-16
controlling the respective relays are written to or the card is
reset. The card remains in the busy state until both timers have
timed out.
Bit
7-1
Purpose
Undefined
all 1s
Setting
• Read Only
• Undefined bits readback as all 1s
• BUSY~: 0 = Busy, 1 = Ready
Current Sense Select (W) Base + 3
This register controls the current sense relays of the card. Since
only one current sense channel at a time per slot is allowed,
these channel selects are encoded. This allows for none or one
current sense relay to be selected. Writing to this register starts
the reed relay timer.
Bit
7-5
Purpose
Undefined
Setting
• Write Only
• Undefined bits are not used
Valid current sense selection values are: 00001
Selecting values 00000
current sensing for any channel.
00001
- corresponds to current sense select on channel 1.
2
00010
- corresponds to current sense select on channel 2.
2
01101
- corresponds to current sense select on channel 13.
2
10000
- corresponds to current sense select on channel 16.
2
00000
or nnnnn
2
2
(Example: Setting the current sense register to 00110
channel six. Therefore relays K11 and K12 would be closed.)
• Power On/Reset State = 0
Select
0,17-31
1
Relays
none
K1,
K2
0
BUSY~
state
h
4-0
I Sense Select
X
Select No.
or 10001
- 11111
2
2
>10000
- no current sense relays selected.
2
2
3
4
K3,
K5,
K7,
K9,
K4
K6
K8
K10
E6198B Switch/Load Unit User Manual
- 10000
.
2
2
will NOT select
2
selects
2
5
6
7
8
K11,
K13,
K15,
K12
K14
K16
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