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BEU8637-12 Datasheet(PDF) 4 Page - Aeroflex Circuit Technology

Part # BEU8637-12
Description  Independent Balancing for Two 12-Cell Batteries Cell Voltage Monitoring and Telemetry
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Manufacturer  AEROFLEX [Aeroflex Circuit Technology]
Direct Link  http://www.aeroflex.com
Logo AEROFLEX - Aeroflex Circuit Technology

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SCD8637 Rev E 3/21/08
Aeroflex Plainview
4
MIL-STD-1553B Telemetry & Commands (Each 12-cell battery)
Analog or bi-level telemetry can be requested from either
the primary or the redundant controller and reported over
the dual redundant 1553B interface with the RT addresses
configurable at the J1 and J4 connectors.
Analog Telemetry
Each analog telemetry item can be requested individually on
sub-addresses 18, 19 or 22.
First a 1553B receive command with one data word as
defined in Table I, which specifies the telemetry item being
requested, must be issued. After a minimum delay of 1.2ms,
the data can be retrieved by sending a 1553B transmit
command for one data word on the same sub-address on
which the request was initiated.
The 12-bit data reply is left justified in the 16-bit 1553B data
word with the four LSBs set to "0".
Bi-Level Telemetry
Bi-level telemetry can be requested on sub-addresses 18, 19
or 22.
First a 1553B receive command with one data word as
defined in Table II, which specifies the telemetry item being
requested, must be issued. After a minimum delay of 1.2ms,
the data can be retrieved by sending a 1553B transmit
command for one data word on the same sub-address on
which the request was initiated.
Table I – Analog Telemetry (Each 12-cell battery)
Item
Telemetry Title
Telemetry Reply
Scale
1st Data Word of
1553B Receive
Command (Hex)
1
4V Reference
-0.40V to 4.89V
0800
2
0V Reference
-0.40V to 4.89V
0803
3
Total Battery Voltage 1
0V to 61.44V
0805
4
Total Battery Voltage 2
0V to 61.44V
0806
5
Total Battery Voltage 3
0V to 61.44V
0809
6
Share Bus Voltage
0V to 5.12V
080A
7
Cell 1 Voltage
0V to 5.12V
0811
8
Cell 2 Voltage
0V to 5.12V
0812
9
Cell 3 Voltage
0V to 5.12V
0814
10
Cell 4 Voltage
0V to 5.12V
0817
11
Cell 5 Voltage
0V to 5.12V
0818
12
Cell 6 Voltage
0V to 5.12V
081B
13
Cell 7 Voltage
0V to 5.12V
081D
14
Cell 8 Voltage
0V to 5.12V
081E
15
Cell 9 Voltage
0V to 5.12V
0821
16
Cell 10 Voltage
0V to 5.12V
0822
17
Cell 11 Voltage
0V to 5.12V
0824
18
Cell 12 Voltage
0V to 5.12V
0827
19
Cell 13 Voltage
0V to 5.12V
0828
20
Cell 14 Voltage
0V to 5.12V
082B
21
Cell 15 Voltage
0V to 5.12V
082D
22
Cell 16 Voltage
0V to 5.12V
082E
23
Cell 17 Voltage
0V to 5.12V
0830
24
Cell 18 Voltage
0V to 5.12V
0833
25
Cell 19 Voltage
0V to 5.12V
0835
26
Cell 20 Voltage
0V to 5.12V
0836
27
Cell 21 Voltage
0V to 5.12V
0839
28
Cell 22 Voltage
0V to 5.12V
083A
29
Cell 23 Voltage
0V to 5.12V
083C
30
Cell 24 Voltage
0V to 5.12V
083F
31
Lowest Cell Voltage
0V to 5.12V
0871
32
Highest Cell Voltage
0V to 5.12V
0872
1/ For Battery A.
2/ For Battery B.
1/
2/
Table II – Bi-level Telemetry
Item
Telemetry Title
Status
Reply
Bit
1st Data
Word of
1553B
Receive
Command
(Hex)
1
Overvoltage Latch Status
1 = Set
D13
0C80


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