---( P )--- Positive RLO Edge Detection

---( P )---    Positive RLO Edge Detection 
Symbol
<address>
  ---( P )---

Parameter    Data Type      Memory Area     Description
<address>       BOOL        I, Q, M, L, D      Edge memory bit, storing the previous signal state of RLO 
Description
---( P )--- (Positive RLO Edge Detection) detects a signal change in the address from "0" to "1" and
displays it as RLO = "1" after the instruction. The current signal state in the RLO is compared with the
signal state of the address, the edge memory bit. If the signal state of the address is "0" and the RLO
was "1" before the instruction, the RLO will be "1" (pulse) after this instruction, and "0" in all other
cases. The RLO prior to the instruction is stored in the address.

The edge memory bit M0.0 saves the old RLO state. When there is a signal change at the RLO from
"0" to "1", the program jumps to label CAS1.

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