Specifications

6 ADDI-DATA
6-6
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