31
Functions Listed by Purpose Section 1-4
High-speed counter
functions
Detecting position and length when input is received from incremental rotary encoder
Low-speed (1 kHz)
frequency count
CPU Unit
(built-in inputs)
Input interrupt:
Counter Mode
(decrementing,
1kHz)
CPU Unit built-in inputs (IR 00000
to IR 00003) can be used as
high-speed counters without
executing interrupt. PVs are
stored in SR 244 to SR 247.
Low-speed (2.5 kHz/
5 kHz) frequency count
High-speed
counter 0:
Differential Phase
Mode (2.5 kHz)
Incrementing
Mode (5 kHz)
High-speed pulse input from CPU
Unit built-in inputs (IR 00004 to IR
00006) is counted. PVs are
stored in SR 230 and SR 231.
High-speed (25 kHz/
50 kHz or 250 kHz/
500 kHz) frequency
count
High-speed
Counter Board
High-speed
counters 1 to 4:
Differential Phase
Mode (25 kHz/
250 kHz,
multiplication
factor: 1/2/4)
Pulse + Direction
Mode
(50 kHz/500 kHz)
Up/Down Mode
(50 kHz/500 kHz)
High-speed pulse input from ports
1, 2, 3 and 4 of the High-speed
Counter Board is counted. For
slot 1, the PVs are stored in IR
200 to IR 207 and for slot 2, in SR
232 to SR 239. (Ring mode or
linear mode can be set as the
numeric range.)
High-speed (25 kHz/
50 kHz) frequency
count
Pulse I/O Board High-speed
counters 1 and 2:
Differential Phase
Mode (25 kHz)
Pulse + Direction
Mode (50 kHz)
Up/Down Mode
(50 kHz)
High-speed pulse input from ports
1 and 2 of the High-speed
Counter Board is counted. For
slot 1, the PVs are stored in IR
200 to IR 207 and for slot 2, in SR
232 to SR 239. (Ring mode or
linear mode can be set as the
numeric range.)
High-speed counting of
signals from an
absolute rotary encoder
Absolute
Encoder
Interface Board
High-speed
counters 1 and 2:
Input modes:
BCD Mode and
360° Mode
Resolution
settings: 8-bit (0 to
255), 10-bit (0 to
1023), 12-bit (0 to
4095)
Set the resolution
to match the
connected
encoder.
Binary Grey code input from an
absolute rotary encoder is
counted. The PVs are stored in
SR 232 to SR 235.
Purpose Unit/Board Function Details
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