MATLAB XPC TARGET 4 - DEVICE DRIVERS Spezifikationen PDF herunterladen (Seite 198)

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6 ADDI-DATA

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PA-1700

The PA1700 is a counter board with three 24-bit counters for connecting three

incremental encoders.

xPC Target supports this board with one driver block:

•“PA-1700 Incremental Encoder”

Board Characteristics

PA-1700 Incremental Encoder

The driver block has two block outputs. The first outputs the actual absolute

angle in radians. The second output is zero as long as the index or the reference

point was not reached by rotating the encoder. If it is reached for the first time

and only for the first time the corresponding counter is reset to zero and this

output goes to 1. From then on the output 1 outputs an absolute angle even in

the case the encoder is turned multiple times. The second output can be used

for controlling or switching different Simulink submodels.

Driver Block Parameters

Counter. From the list select 1, 2, or 3. This parameter specifies which counter

is used for this block. For the same board (same base address) two blocks

cannot have the same counter (channel) specified.

Mode - From the list select single, double, or quadruple. This parameter

specifies the phase detection mode ie. how many phase-changes are detected of

the specified counter (see the PA1700-manual).

Board name PA1700

Manufacturer ADDI-DATA

Bus type ISA

Access method I/O mapped

Multiple block instance support Yes

Multiple board support Yes

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MATLAB XPC TARGET 4 - DEVICE DRIVERS Spezifikationen Seite 198

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