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4. I/O Allocation
• The data of the high-speed counter board are stored in the special data registers.
Data type
Description
Channel 0
Channel 1
Channels
0 and 1
DT9104, DT9105
DT9106, DT9107
DT9108, DT9109
DT9110, DT9111
DT9112, DT9113
DT9114, DT9115
DT9116, DT9117
DT9118, DT9119
DT9120
DT9121
• These registers are for storing data of the high-speed
counter board.
• The target value areas, elapsed value, and capture
value are processed in binary in the range of
K-8,388,608 to K8,388,607. If the data outside the
range is input, the data is handled while disregarding
bit positions 24 to 31 in each register (bit positions 8
to 15 in higher 16-bit area of 32-bit data).
Note:
• Be sure to use the F1 (DMV) instruction to transfer
data in these special data registers to other registers,
or data in other registers to these special data
registers.
• The control modes for the high-speed counter board
are specified by DT9120. The control modes, output
mode, internal and external reset enable/disable,
"target = elapsed" output control, and target setting
can be set. For details about construction of DT9120,
refer to the following page.
• The status of the high-speed counter board can be
monitored by DT9121. The status of reset enable
input, output disable input, flag condition when target
value = elapsed value, and error code can be
monitored. For details about construction of DT9121,
refer to the following page.
Special data
register
Target value 0
Target value 1
Elapsed value
Capture value
Target value 0
Target value 1
Elapsed value
Capture value
Control area
Status monitor
register area
Channel
number
153
7-5. High-speed Counter Board
Содержание FP-M Hardware
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