15.2.17 FC 16 - I_STRNG - Convert INT to STRINGThe function FC 16 converts a variable in DINT data format to a string. The string isshown preceded by a sign. If the variable given at the return parameter is too short, noconversion takes place and the BR bit is set to "0".ParameterParameter Declaration Data type Memory area DescriptionI INPUT INT I, Q, M, D, LConstantInput valueRET_VAL* OUTPUT STRING D, L Result string*) You can assign only a symbolically defined variable for the parameter.15.2.18 FC 17 - INSERT - Insert in a STRING variableThe function FC 17 inserts a string at parameter IN2 into the string at parameter IN1 afterthe character at position P.n If P equals zero, the second string is inserted before the first string.n If P is greater than the current length of the first string, the second string is appendedto the first.n If P is negative, a blank string is output and the BR bit is set to "0". The binary resultbit is also set to "0" if the resulting string is longer than the variable given at the outputparameter; in this case the result string is limited to the maximum set length.Parameter Declaration Data type Memory area DescriptionIN1* INPUT STRING D, L STRING variable to be insertedintoIN2* INPUT STRING D, L STRING variable to be insertedP INPUT INT I, Q, M, D, LConstantInsert positionRET_VAL* OUTPUT STRING D, L Result string*) You can assign only a symbolically defined variable for the parameter.15.2.19 FC 18 - LE_DT - Compare DT for smaller than or equalThe function FC 18 compares the contents of two variables in the formatDATE_AND_TIME to determine if one is smaller or equal to the other and outputs theresult of the comparison as a return value. The return value has the signal state "1" if thetime at parameter DT1 is smaller (older) than the time at parameter DT2 or if bothinstants of time are the same. The function does not report any errors.DescriptionDescriptionParameterDescriptionParameterVIPA SPEED7 StandardIEC > FC 18 - LE_DT - Compare DT for smaller than or equalHB00 | OPL_SP7 | Operation list | en | 18-30 811
