IDEC SmartAXIS Touch FT1A Series, Руководство пользователя

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SmartAXIS Touch User's Manual
3-65
4 Special Functions
3
Pr
oject
■
Comparison output reset
When the special internal relay turns on, the comparison output selected on High-speed Counter Settings turns off.
■
Reset input
When reset input is turned on, the current value returns to the reset value.
■
Preset value, reset value storage locations
The preset value and the reset value for the high-speed counter are stored in special data registers as 2 words.
When the 32-bit data storage setting in the function area settings is set to from Lower Word , the lower word is
stored in the first device.
■
HSC reset input and reset status
When the HSC reset input is enabled in group 1, turn on HSC reset input I2 to return the current value to the reset
value.
In this situation, reset status turns on for only one scan.
To use the reset input with group 1 single-phase high-speed counter, use I2 (group 2). When not using I2 as a reset
input, it can be used as normal input, high-speed counters, catch input, interrupt input, or frequency measurements.
■
Count direction flag
These special internal relays maintain whether group 1 current value count is being added or subtracted.
When these special internal relays are on, they indicate addition. When they are off, they indicate subtraction.
Group
1
(I0 to I1)
2
(I2)
3
(I3)
4
(I4)
5
(I5)
Read/Write
Comparison
Output Reset
M8030 M8040 M8055 M8166 M8173 R/W
Group
1
(I0 to I1)
2
(I2)
3
(I3)
4
(I4)
5
(I5)
Read/Write
Reset Input M8032 M8042 M8057 M8170 M8175 R/W
Reset input
N N-1 N+1 Reset value (initial value) Current value
Group
1
(I0 to I1)
2
(I2)
3
(I3)
4
(I4)
5
(I5)
Read/Write
Preset Value
(Upper word)
D8052 D8058 D8070 D8136 D8142
R/W
Preset Value
(Lower word)
D8053 D8059 D8071 D8137 D8143
Reset Value
(Upper word)
D8054 D8060 D8072 D8138 D8144
Reset Value
(Lower word)
D8055 D8061 D8073 D8139 D8145
Group
1
(I0 to I1)
2
(I2)
3
(I3)
4
(I4)
5
(I5)
Read/Write
HSC Reset Input
I2 – – – – –
Reset Status
M8033 – – – – R
HSC reset input
Reset status
N N-1 N+1 Reset value (initial value) Current value
One scan
Group
1
(I0 to I1)
2
(I2)
3
(I3)
4
(I4)
5
(I5)
Read/Write
Count Direction
Flag
M8037 – – – – R