6 appendix, 1 iec keywords, 6appendix – Lenze DDS v2.0 User Manual
Page 20: Appendix

Introduction to IEC 61131-3 programming
Appendix
18
L
DDS-IEC61131 EN 2.0
6
Appendix
6.1
IEC keywords
Keywords are unique character combinations used as individual syntax elements.
•
Keywords must not be used as identifiers.
•
Keywords under the Drive PLC Developer Studio also include the names of Lenze function
blocks, that always start with ” L_” ( L_ABS , L_ADD , ...).
Keywords reserved for IEC 61131-3 programming languages:
ABS
ACOS
ACTION
ADD
AND
ANDN
ANY
ANY_BIT
ANY_DATE
ANY_INT
ANY_NUM
ANY_REAL
ARRAY
ASIN
AT
ATAN
BOOL
BY
BYTE
CAL
CALC
CALCN
CASE
CD
CDT
CLK
CONCAT
CONFIGURATION
CONSTANT
COS
CTD
CTU
CTUD
CU
CV
DATE
DATE_AND_TIME
DELETE
DINT
DIV
DO
DS
DT
DWORD
ELSE
ESIF
END_ACTION
END_CASE
END_CONFIGURATION END_FOR
END_FUNCTION
END_FUNCTION_BLOCK
END_IF
END_PROGRAM
END_REPEAT
END_RESOURCE
END_STEP
END_STRUCT
END_TRANSITION
END_TYPE
END_VAR
END_WHILE
EN
ENO
EQ
ET
EXIT
EXP
EXPT
FALSE
F_EDGE
F_TRIG
FIND
FOR
FROM
FUNCTION
FUNCTION_BLOCK
GE
GT
IF
IN
INITIAL_STEP
INSERT
INT
INTERVAL
JMP
JMPC
JMPCN
L
LD
LDN
LE
LEFT
LEN
LIMIT
LINT
LN
LOG
LREAL
LT
LWORD
MAX
MID
MIN
MOD
MOVE
MUL
MUX
N
NE
NEG
NOT
OF
ON
OR
ORN
P
PRIORITY
PROGRAM
PT
PV
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