177
Fig. 6-37 Central point mode 2
Tens place: X8 central point selection
Refer to the settings of the unit place (X7 central point selection).
When the terminal X7/X8 is used as the high-speed pulse input terminal, this function code defines the
filtering time of the input pulse. The longer the filtering time is, the slower the reference pulse frequency
change rate will be.
Fig. 6-38 Terminal positive/negative logic setting
This function code defines the positive/negative logic of the input terminal.
Positive logic: enabled when the Xi terminal is connected to the corresponding common end,
disabled when the terminal is disconnected;
Negative logic: disabled when the Xi terminal is connected to the corresponding common end,
enabled when the terminal is disconnected;
When 0 is selected for the BIT, it indicates the positive logic. When 1 is selected, it indicates the negative
logic.
For example:
If you want to set X1~X4 as positive logic and set X5~X8 as negative logic, make the following setting:
Input terminal valid status setting 00~FFH (00)P09.15
Input pulse filtering time 0.00~10.00s (0.05s)P09.14
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