AMCI NEXUS NX2A4E2, Руководство пользователя

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D
ATA
F
ORMATS
NX2A4E2 User Manual
ADVANCED MICRO CONTROLS INC.
24
Output Data Formats (continued)
Dual Resolver Data Format (continued)
Preset Value (Words 6 & 7)
This parameter allows you to set the reported position to any value within its programmable range. The range
of values for the Preset Value is Linear Offset to (Linear (Full Scale Count – 1)). When the Linear
Offset equals zero, this becomes 0 to (Full Scale Count – 1).
This value is programmed with two 16 bit words. The ‘thousands’ digits go into the upper
word and the remaining digits are entered into the lower word. For example, a value of
123,456 would have a value of 123 in word 6, and a value of 456 in word 7. A value of 36,000
would have a value of 36 in word 6, and a value of 0 in word 7.
Input Data Formats
Data Blocks
The input data is broken down into two data
blocks. Words 0 - 7 are Data Block A, while
words 8 - 15 are Data Block B. Each Data
Block contains the data for two single
resolver transducers, or one dual-resolver
transducer. Table R2.4 shows the formats of
the blocks. The left column is for when the
Data Block is for single resolver transducer,
and the right block is for when the Data
Block is for one dual-resolver transducer.
Words 16 and 17 will only contain data if the
NX2A4E2 has a single resolver transducer
on channel 1.
Multi-word Data Format
The Full Scale Count, Linear Offset, and Preset Value parameters are all greater in length than 16 bits. This
parameters are transmitted in two separate words. The table below shows how these parameters are split
between the two words.
Table R2.5 Multi-Word Format Examples
Value Upper Word Lower Word
12 0 12
12,345 12 345
Table R2.4 Input Data Format
0 CH1 Status MCH1 Status
1 16#0000 MCH1 Upper 4 Position Digits
2 CH 1 Position MCH1 Lower 3 Position Digits
3 CH1 Tachometer MCH1 Tachometer
4 CH2 Status 16#0000
5 16#0000 16#0000
6 CH2 Position 16#0000
7 CH2 Tachometer 16#0000
8 CH3 Status MCH2 Status
9 16#0000 MCH2 Upper 4 Position Digits
10 CH3 Position MCH2 Lower 3 Position Digits
11 CH3 Tachometer MCH2 Tachometer
12 CH4 Status 16#0000
13 16#0000 16#0000
14 CH4 Position 16#0000
15 CH4 Tachometer 16#0000
16 CH1 Stop Time 16#0000
17 Brake Applied Position 16#0000
18 16#0000 16#0000
19 16#0000 16#0000
20 16#0000 16#0000
Word #
Single Resolver Data Dual-Resolver Data
D
A
T
A
BL
O
C
K
A
DA
T
A
B
L
OC
K
B