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Chapter 6. BUFFER MEMORY AND I/O SIGNAL CONFIGURATON
6.2.3
F u n c t i o n s o f I / O S i g n a l s
1) Input Signals
① OUT 1
A data among ' >' , ' =' and ' <' is selected and if the current comparison result conforms to the
selected data this input signal will be set to high (On).
② OUT 2
A data among ' >' , ' =' and ' <' is selected and if the current comparison result conforms to the
selected data this input signal will be set to high (On).
③ Home Input Signal
If the Home signal is inputed, this signal will be set to high (On). That is, this signal will be set to
high if the both of the limit switch signal and phase Z signal are turned On when the Home Latch
enable signal turns On. This signal will be set to low if the Home Latch signal turns Off.
④ Increment/Decrement Count Signal
This signal turns On if increment counting is being performed in present, and turns Off if decrement
counting is being performed.
⑤ C a r r y Signal
If the current count value is ' 16,777,215' and increments by one pulse, the current value
becomes ' 0 ' and the carry signal turns On.
⑥ Borrow Signal
If the current count value is ' 0 ' and decrements by one pulse, the current value becomes
' 16,777,215' and the borrow signal turns On.
⑦ Data Format Error
If a value of Preset, Set or Out data exceeds the input range, this signal turns On. If a normal
data value is inputed it turns Off.
2) Output Signal
① Counter Preset Signal
This signal makes the high speed counting module process the counter initial set value(Preset
value) written in the Buffer Memory (CH0: addresses 0 and 1, CH1: addresses 10 and 11). Only
one pulse has to be turned On.
② Counter Set Signal
This signal makes the high speed counting module process the current value written in the Buffer
Memory (CH0: addresses 2 and 3, CH1: addresses 12 and 13) and the set value(SET value)
which will be compared with it.
6 - 6
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Troubleshooting
