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Siemens SIMATIC TI505 User Manual

Siemens SIMATIC TI505
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Understanding Module Operation
3-5
High Speed Counter Encoder Module User Manual
Each
24-bit counter has two preset values to control two outputs, as listed in
T
able 3-1 and shown in Figure 3-1. The 24-bit unipolar value for each preset
is contained in the lower byte of the most significant word and both bytes of
the least significant word, as shown by the shaded areas in T
able 3-3. The
upper byte of the most significant word is used to configure the counters
and outputs.
T
able 3-3
24-Bit Pr
eset V
alue For
mat
Word MSByte LSByte
MSWord 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
LSWord 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
The current count value for each 16-bit counter is contained in a one word
input, (for example, WX3 for Counter 2). The preset value for each 16-bit
counter uses a single word output, (for example, WY25 for Counter 2). The
format for the count value and preset value is shown in T
able 3-4.
T
able 3-4
16-Bit V
alue For
mat
Word MSByte LSByte
WX/WY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
The count range is from 0 to 65535 (2
16
) in integer format.
The count range is from –32768 to +32767 (2
16
) in signed integer
format.
Overflow and underflow occur at about the 0 value.
The module handles all values and presets as unipolar format. Y
ou can
choose to handle the values in either integer or signed integer format.
24-Bit Pr
eset and
Configuration
Formats
16-Bit Count and
Pr
eset V
alue
Formats

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Siemens SIMATIC TI505 Specifications

General IconGeneral
BrandSiemens
ModelSIMATIC TI505
CategoryControl Unit
LanguageEnglish

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