--- a/plcopen/iec_std.csv	Mon Mar 11 09:18:58 2019 +0100
+++ b/plcopen/iec_std.csv	Mon Mar 11 13:51:07 2019 +0100
@@ -56,7 +56,7 @@
 ;SUB;1;(DT, TIME);DT;_("Date and time subtraction")+" "+_("DEPRECATED");no;
 ;SUB_DT_TIME;1;(DT, TIME);DT;_("Date and time subtraction");no;
 ;SUB;1;(DT, DT);TIME;_("Date and time subtraction")+" "+_("DEPRECATED");no;
-;SUB_DT_TIME;1;(DT, DT);TIME;_("Date and time subtraction");no;
+;SUB_DT_DT;1;(DT, DT);TIME;_("Date and time subtraction");no;
 ;DIV;1;(TIME, ANY_NUM);TIME;_("Time division")+" "+_("DEPRECATED");no;
 ;DIVTIME;1;(TIME, ANY_NUM);TIME;_("Time division");no;
 _("Bit-shift");SHL;1;(ANY_BIT, N);ANY_BIT;_("Shift left");no;
@@ -83,7 +83,7 @@
 ;RIGHT;1;(STRING, L);STRING;_("string right of");no;
 ;MID;1;(STRING, L, P);STRING;_("string from the middle");no;
 ;CONCAT;1;(STRING, STRING);STRING;_("Concatenation");yes;
-;CONCAT_DAT_TOD;1;(DATE, TOD);DT;_("Time concatenation");no;
+;CONCAT_DATE_TOD;1;(DATE, TOD);DT;_("Time concatenation");no;
 ;INSERT;1;(STRING, STRING, P);STRING;_("Insertion (into)");no;
 ;DELETE;1;(STRING, L, P);STRING;_("Deletion (within)");no;
 ;REPLACE;1;(STRING, STRING, L, P);STRING;_("Replacement (within)");no;