POS : Address Positive Edge Detection

POS : Address Positive Edge Detection

Parameter	Data Type	Memory Area	Description
<address1>	BOOL	I, Q, M, D, L	Signal to be checked for a positive (rising) edge.
M_BIT	BOOL	Q, M, D	The M_BIT address specifies the edge memory bit used to store the previous signal state of POS. You should only use the process image input area I for the M_BIT when no input module is already using this address.
Q	BOOL	I, Q, M, D, L	One-shot output.

Description

The Address Positive Edge Detection instruction compares the signal state of

<address1> with the signal state of the previous signal check that is stored in the parameter M_BIT. If there has been a change from 0 to 1, output Q has the

value 1, in all other cases it has the value 0.

Status Word

	BR	CC 1	CC 0	OV	OS	OR	STA	RLO	FC
writes	X	-	-	-	-	0	1	X	1