AMCI NEXUS NX2A4E2, User Manual

Page: 21 / 76

20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
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Tel: (860) 585-1254 Fax: (860) 584-1973 http://www.amci.com
NX2A4E2 User Manual
D
ATA
F
ORMATS
21
Output Data Formats (continued)
Dual Resolver Data Format (continued)
Command Word 0
Figure R2.5 Single Turn Command Word Format
Bit 15: Transmit Bit –
Used to control the flow of programming data to the NX2A4E2. The NX2A4E2 will
not accept new programming data until this bit makes a 0

1 transition. Once this bit is set, it should
remain set until the module responds by setting the Acknowledge bit in the Network Input Data. Pro-
gramming error bits in the input data are valid as long as the Acknowledge bit is set. Resetting the
Transmit bit to “0” will reset the Acknowledge bit.
Bit 14: Reset_Errors –
When set to “1”, the module will reset all programming error bits and clear any
latched transducer faults that can be cleared.
Bit 09: Setup_MCH2 –
When set to “1”, the module uses words 1 through 9 to program input channels 3 and
4 as a dual-resolver transducer channel. Note that only one channel can be programmed at a time. If
this bit is a “1”, then bit 8 of this word must be “0”.
Bit 08: Setup_MCH1 –
When set to “1”, the module uses words 1 through 9 to program input channels 1 and
2 as a dual-resolver transducer channel. Note that only one channel can be programmed at a time. If
this bit is a “1”, then bit 9 of this word must be “0”.
Bit 02: Apply_Preset2 –
When set to “1”, the module sets the multi-turn position for the second dual resolver
channel to the value of the MCH2 Preset Value parameter. The MCH2 Preset Value has a factory
default value of zero. The MCH2 Preset Value can be programmed by setting the Setup_MCH2 bit
(bit 09 of this word) and putting the desired MCH2 Preset Value in Words 6 and 7. Please note that
applying the preset value, and programming the MCH2 Preset Value parameter, are two independent
processes. They can be accomplished in the same transmit cycle, but do not have to be. Also note that
the ApplyPreset bits are not exclusive. Any number of channels can be preset together in one pro-
gramming cycle.
Bit 00: Apply_Preset1 –
When set to “1”, the module sets the multi-turn position for the first dual resolver
channel to the value of the MCH1 Preset Value parameter. The MCH1 Preset Value has a factory
default value of zero. The MCH1 Preset Value can be programmed by setting the Setup_MCH1 bit
(bit 08 of this word) and putting the desired MCH1 Preset Value in Words 6 and 7. Please note that
applying the preset value, and programming the MCH1 Preset Value parameter, are two independent
processes. They can be accomplished in the same transmit cycle, but do not have to be. Also note that
the ApplyPreset bits are not exclusive. Any number of channels can be preset together in one pro-
gramming cycle.
RESERVED: Bit must equal zero.
Command Word (0)
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
T
rans
m
it
Reset
_
Er
ror
s
Setu
p_MCH
1
Setu
p_MCH
2
Appl
y
_
Pres
et2
Appl
y
_
Pres
et1