--- a/lib/edge_detection.txt	Mon Jul 06 13:29:08 2020 +0200
+++ b/lib/edge_detection.txt	Mon Oct 04 11:29:13 2021 +0200
@@ -20,7 +20,7 @@
 FUNCTION_BLOCK R_TRIG
      VAR_INPUT  CLK: BOOL; END_VAR
      VAR_OUTPUT  Q: BOOL; END_VAR
-     VAR RETAIN M: BOOL; END_VAR
+     VAR M: BOOL; END_VAR
 Q := CLK AND NOT M;
 M := CLK;
 END_FUNCTION_BLOCK
@@ -28,7 +28,7 @@
 FUNCTION_BLOCK F_TRIG
      VAR_INPUT  CLK: BOOL; END_VAR
      VAR_OUTPUT   Q: BOOL; END_VAR
-     VAR RETAIN M: BOOL; END_VAR
+     VAR M: BOOL; END_VAR
 Q := NOT CLK AND NOT M;
 M := NOT CLK;
 END_FUNCTION_BLOCK