Reserved keywords

You cannot use reserved keywords as names of programs or variables. All keywords beginning with an underscore (_) are internal keywords and cannot be used in textual instructions.
Reserved keywords
Starts with
Description
A
ABS, ABLACB, ACL, ACOS, ADD, AHLII, ANA, AND, AND_MASK, ANDN, ARDARL, ARRAY, ASCIILOCADDR, ASIN, AT, ATAN, AT_Param, AWAAWT
B
BCD_TO_BOOL, BCD_TO_INT, BCD_TO_REAL, BCD_TO_STRING, BCD_TO_TIME, BLINK, BOO, BOOL, BOOL_TO_BCD, BOOL_TO_INT, BOOL_TO_REAL, BOOL_TO_STRING, BOOL_TO_TIME, BY, BYTE
C
CAL, CALC, CALCN, CALN, CALNC, CASE, CONCAT, CONSTANT, COS
D
DATE, DATE_AND_TIME, DELETE, DINT, DIV, DO, DOYDATA, DT, DWORD
E
ELSE, ELSIF, EN, END_CASE, END_FOR, END_FUNCTION, END_IF, END_PROGRAM, END_REPEAT, END_RESSOURCE, END_STRUCT, END_TYPE, END_VAR, END_WHILE, ENO, EQ, EXIT, EXP, EXPT
F
FALSE, FIND, FOR, FUNCTION
G
GAIN_PID, GE, GFREEZE, GKILL, GRST, GSTART, GSTATUS, GT
H
HSC0, HSC1, HSC2, HSC3, HSCAPP, HSCSTS
I
IF, INSERT, INT, INT_TO_BCD, INT_TO_BOOL, INT_TO_REAL, INT_TO_STRING, INT_TO_TIME
J
JMP, JMPC, JMPCN, JMPN, JMPNC
L
LD, LDN, LE, LEFT, LEN, LIMIT, LINT, LN, LOG, LREAL, LT, LWORD
M
MAX, MID, MIN, MMINFO, MMCATNUM, MOD, MODBUSLOCPARA, MODBUSTARPARA, MODBUSLOCADDR, MOVE, MSG, MUL, MUX
N
NE, NOT
O
OF, ON, OR, OR_MASK, ORN
P
PROGRAM
R
R, READ_ONLY, READ_WRITE, REAL, REAL_TO_BCD, REAL_TO_BOOL, REAL_TO_INT, REAL_TO_STRING, REAL_TO_TIME, REPEAT, REPLACE, RESSOURCE, RET, RETAIN, RETC, RETCN, RETN, RETNC, RETURN, RIGHT, ROL, ROR, RTC
S
S, SHL, SHR, SIN, SINT, SQRT, ST, STN, STRING, STRING_TO_BCD, STRING_TO_BOOL, STRING_TO_INT, STRING_TO_REAL, STRING_TO_TIME, STRUCT, SUB, SUB_DATE_DATE, SYS_ERR_READ, SYS_ERR_TEST, SYS_INITALL, SYS_INITANA, SYS_INITBOO, SYS_INITTMR, SYS_RESTALL, SYS_RESTANA, SYS_RESTBOO, SYS_RESTTMR, SYS_SAVALL, SYS_SAVANA, SYS_SAVBOO, SYS_SAVTMR, SYS_TALLOWED, SYS_TCURRENT, SYS_TMAXIMUM, SYS_TOVERFLOW, SYS_TRESET, SYS_TWRITE, SYSINFO, SYSTEM
T
TAN, TASK, THEN, TIME, TIME_OF_DAY, TIME_TO_BCD, TIME_TO_BOOL, TIME_TO_INT, TIME_TO_REAL, TIME_TO_STRING, TMR, TO, TOD, TOWDATA, TRUE, TYPE
U
UDINT, UIC, UID, UIE, UIF, UINT, ULINT, UNTIL, USINT
V
VAR, VAR_ACCESS, VAR_EXTERNAL, VAR_GLOBAL, VAR_IN_OUT, VAR_INPUT, VAR_OUTPUT
W
WHILE, WITH, WORD
X
XOR, XOR_MASK, XORN
Provide Feedback
Have questions or feedback about this documentation? Please submit your feedback here.
Normal