* Question
| What should you pay attention to when using the pulsed contact command LDP/LDF/ANDP/ANDF/ORP/ORF? |
* Answer
| (1) LDP, ANDP and ORP instructions are used as contact instructions for rising edge detection. The middle of the contact has an upward arrow. The corresponding contact is only on the rising edge of the specified bit element (from OFF to 0N). ) turns on one scan cycle. (2) LDF, ANDF and ORF are contact instructions for detecting falling edge. There is a downward arrow in the middle of the contact. The corresponding contact is only on the falling edge of the specified bit (from ON to 0FF). When a scan cycle is turned on. |
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